Selected vegetation types in the
vicinity of Loja, Ecuador
16 October 2014
|
ABSTRACT
Selected tree species, either native to Ecuador
or significantly present in the vicinity of Loja, are described
and characterized. Fifteen tree species are featured, encompassing a variety of ecological settings, from dry forests
to humid forests. The portrayal is to be used as a
basis for ongoing ecohydroclimatological research.
|
INTRODUCTION
Fifteen (15) tree species, native to Ecuador or with
significant presence in the province of Loja, are described and characterized.
The selection is to be used as a basis for species identification
in ecohydroclimatological research.
The selected species are shown in Table A.
Table A. Selected vegetative species
suited to ecohydroclimatological research.
|
No. |
Family |
Species |
Link |
1 |
Araliaceae |
Oreonapax rosei Harms |
Table 1 |
2 |
Oleaceae |
Chionantus pubescens Kunth |
Table 2 |
3 |
Sapindaceae |
Sapindus saponaria L. |
Table 3 |
4 |
Sapindaceae |
Allophylus mollis (Kunth) Radlk |
Table 4 |
5 |
Bignoniaceae |
Tecoma stans L. Juss ex Kunth |
Table 5 |
6 |
Rubiaceae |
Cinchona pubescens Vahl |
Table 6 |
7 |
Adoxaceae |
Sambucus peruviana Kunth |
Table 7 |
8 |
Rosaceae |
Eriobotrya japonica (Thunb.) Lindl |
Table 8 |
9 |
Passifloraceae |
Passiflora ligularis A. Juss |
Table 9 |
10 |
Bignoniaceae |
Tabebuia chrysantha (Jacq.) G. Nicholson |
Table 10 |
11 |
Mimosaceae |
Acacia macracantha
Humboldt and Bonpland ex Willd |
Table 11 |
12 |
Podocarpaceae |
Podocarpus sprucei
Parl |
Table 12 |
13 |
Fabaceae |
Tipuana tipu
(Benth.) O. Kuntze |
Table 13 |
14 |
Caesalpiniaceae |
Caesalpinia spinosa
(Benth.) O. Kuntze |
Table 14 |
15 |
Bignoniaceae |
Delostoma integrifolium D. Don |
Table 15 |
Table 1.
Oreopanax rosei Harms. [Top]
|
Family |
Genus |
Species |
Complete scientific name |
Common name |
Araliaceae |
Oreonapax |
O. rosei |
Oreopanax rosei Harms |
Pumamaqui, Puma's hand |
Description |
Conservation status |
Images |
This tree/shrub species is endemic to Ecuador.
It is found within the provinces of Cañar, Loja, and El Oro.
This species is an important component of the andean and high-andean forests.
Its natural habitats are
subtropical/tropical moist montane forests and subtropical/tropical high-altitude shrubland.
- The species is threatened by habitat loss.
|
Vulnerable (VU) |
|
Fig. 1 (a)
Oreopanax rosei Harms.
|
Fig. 1 (b)
Oreopanax rosei Harms.
|
Fig. 1 (c) Oreopanax rosei Harms.
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Fig. 1 (d) Oreopanax rosei Harms.
|
Table 2.
Chionanthus pubescens Kunth. [Top]
|
Family |
Genus |
Species |
Complete scientific name |
Common name |
Oleaceae |
Chionantus |
C. pubescens |
Chionantus pubescens Kunth |
Arupo, fringe trees |
Description |
Conservation status |
Images |
The genus Chionantus has a wide distribution in the tropics/subtropics.
The tree is native to Ecuador and Peru.
Itis a deciduous species occurring only
in remnants of semideciduous forest, often on hillsides.
They are shrubs and small to medium-sized trees growing 3-25 m tall.
It is sometimes grown as an ornamental tree.
The leaves are opposite, simple.
The flowers are produced in feathery panicles, with a
corolla subdivided into four slender lobes; they are white, pale yellow, or tinged pink.
|
Least Concern (LC) |
|
Fig. 2 (a)
Chionanthus pubescens Kunth.
|
Fig. 2 (b) Chionanthus pubescens Kunth.
|
Fig. 2 (c) Chionanthus pubescens Kunth.
|
Table 3.
Sapindus saponaria L. [Top]
|
Family |
Genus |
Species |
Complete scientific name |
Common name |
Sapindaceae |
Sapindus |
S. saponaria |
Sapindus saponaria L. |
Checo, Chereco, Jarupe, jaboncillo, soapberry |
Description |
Conservation status |
Images |
Small to medium-size deciduous tree native to the Americas.
It grows in clumps or thickets
reaching about 6 m; solitary trees can reach 15 m height.
The leaves of the soapberry are alternate, pinnately compound, thick and leathery but deciduous, 8 in. (20 cm) to 15 in. (38 cm) in length, made up of 6 to 20 narrow lanceolate leaflets with smooth margins, long tapered tips, and uneven wedge-shaped bases which are 2 in. to 5 in. (5 cm to 13 cm) long and 0.75 in. to 1.5 in. (2 cm to cm) wide.
The inflorescence are dense
terminal panicles of small white flowers 6 in. to 10 in (15 cm to 20 cm) long.
The twigs of var. drummondii are gray-brown and hairy with short tan colored hairs while those of var. saponaria are gray and hairless.
Buds on var. drummondii are small dark brown and hairy while those on var.
saponaria are small brown and hairless.
|
Not Evaluated (NE) |
|
Fig. 3 (a) Sapindus saponaria L.
|
Fig. 3 (b) Sapindus saponaria L.
|
Fig. 3 (c) Sapindus saponaria L.
|
Table 4.
Allophylus mollis (Kunth) Radlk. [Top]
|
Family |
Genus |
Species |
Complete scientific name |
Common name |
Sapindaceae |
Allophylus |
A. mollis |
Allophylus mollis (Kunth) Radlk |
Shiringo, Clambo |
Description |
Conservation status |
Images |
Its range is Venezuela, Colombia, Ecuador, Peru, and Bolivia.
It is a species frequently found in secondary forests of all ages,
on forest fringes and canyons between 2,500 and 3,100 m elevation.
The tree is medium to tall, up to 30 m.
The leaves ar alternate leaves with three
elliptic, toothed leaflets of 9-17 × 5.0-7.5 cm, hairy below.
White-greenish small flowers in inflorescence.
White spherical fruits of up to 1 cm diameter.
|
Not Evaluated (NE) |
|
Fig. 4 (a) Allophylus mollis (Kunth) Radlk.
|
Fig. 4 (b) Allophylus mollis (Kunth) Radlk.
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Fig. 4 (c) Allophylus mollis (Kunth) Radlk.
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Table 5.
Tecoma stans (L) Juss. ex Kunth. [Top]
|
Family |
Genus |
Species |
Complete scientific name |
Common name |
Bignoniaceae |
Tecoma |
T. stans |
Tecoma stans L. Juss ex Kunth |
Cholan, Fresno, Lame Negro, guarán amarillo, yellow trumpetbush, yellow elder
|
Description |
Conservation status |
Images |
Its range is in the neotropical Americas.
It is drought-tolerant and grows well in warm climates and full sun.
It prefers dry and disturbed areas such as roadsides but it can also be found in relatively undisturbed forests.
It is a ruderal species, readily colonizing disturbed, rocky, sandy, and cleared land and occasionally becoming an invasive weed.
It is an attractive shrub or small tree that is cultivated as an ornamental.
It has sharply-toothed, lance-shaped green leaves and bears large,
showy, bright golden yellow trumpet-shaped flowers.
The leaves and roots of the plant contain bioactive compounds, especially monoterpenes,
which may have medicinal uses;
honey bees are attracted to it, but-unlike most flowering plants-the honey produced from Yellow Trumpetbush's nectar/pollen is poisonous.
|
Not Evaluated (NE) |
|
Fig. 5 (a) Tecoma stans (L) Juss. ex Kunth.
|
Fig. 5 (b) Tecoma stans (L) Juss. ex Kunth.
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Fig. 5 (c) Tecoma stans (L) Juss. ex Kunth.
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Table 6.
Cinchona pubescens Vahl. [Top]
|
Family |
Genus |
Species |
Complete scientific name |
Common name |
Rubiaceae |
Cinchona |
C. pubescens |
Cinchona pubescens Vahl |
Cascarilla roja
|
Description |
Conservation status |
Images |
This species is native to Central and South America, its natural habitat being the cloud
forests. It grows to 10 m tall.
In Ecuador it is distributed within an altitude of 300 to 3,900 m, and has the widest distribution of all Cinchona species.
It occurs in agricultural areas, coastland, natural forests, planted forests, range/grasslands, ruderal/disturbed, and scrub/shrublands.
In its native range in Ecuador, C. pubescens grows in volcanic soil rich in organic matter but also in very rocky areas, where the roots are exposed to the air. It grows best in disturbed habitats, especially in areas where vegetation was burnt.
It
exhibits an association with arbuscular mycorrhizae and it grows well in acid volcanic soils.
Its rapid spread, fast growth and growth habit
results in fast invasion and replacement of native vegetation in naturally treeless environments.
Shrub and herb layers experience dramatic loss of species diversity, with very few species able to grow below canopy.
The leaves are shaped from broadly elliptic or oval to broadly oblong, are rather thin, conspicuously veined,
somewhat pubescent beneath and turn red with age while persisting on the tree.
Flowers are large in panicles, pink, and fragrant; capsules ovoid fusiform, 2-3 cm long, and walls are firm.
C. pubescens is known as a medicinal plant for its bark's high quinine content,
and has similar uses to C. officinalis in the production of quinine, used for the treatment of malaria.
|
Not Evaluated (NE) |
|
Fig. 6 (a) Cinchona pubescens Vahl.
|
Fig. 6 (b) Cinchona pubescens Vahl.
|
Fig. 6 (c) Cinchona pubescens Vahl.
|
Table 7. Sambucus peruviana Kunth. [Top]
|
Family |
Genus |
Species |
Complete scientific name |
Common name |
Adoxaceae (ex Caprifoliaceae) |
Sambucus |
S. peruviana |
Sambucus peruviana Kunth |
Elderberry, uva de la sierra, sauco, rayan
|
Description |
Conservation status |
Images |
Sambucus peruviana, commonly called sauco or rayan,
is a medium-sized, spreading tree or shrub that is distributed in the Andean
mountain ranges from Costa Rica and Panama to Colombia,
Ecuador, Bolivia and Peru.
The leaves are pinnate with 5-9 leaflets (rarely 3 or 11).
Each leaf is 5-30 cm long, and the leaflets have serrated
margins. They bear large clusters of small white or cream-colored
flowers in late spring; these are followed by clusters
of small black, blue-black, or red berries.
The elderberry can be deciduous
shrubs, small trees, or herbaceous perennial plants.
Two of the varieties of elderberry are
herbaceous, which means that when they die off, they return to the ground
so that there is no visible stump or remains left.
Sambucus peruviana is one of the few
elderberries that can be eaten out of hand,
and its primary use is as a fruit for human consumption.
Like common elderberries, the fruits can also be made into
syrups and wines, and the flowers can be made into fritters.
|
Not Evaluated (NE) |
The elderberry has been used as an ingredient in wines, marmalades, drinks, and desserts,
but it has also been widely used for its medicinal purposes. Juice from the berries
was used to relieve colds, influenza, bronchitis, asthma, and other respiratory problems.
The flower of the elderberry plant would also be made into creams, washes, or poultices, and used for skin irritants and aliments including, scrapes burns, abrasions, and cuts.
Of all the herbs,
elderberries are ranked third highest in vitamin C content.
In addition, they also contain large amounts of vitamins A and B,
carotenoids, and amino acids. The skin of the elderberry fruit
has the highest concentration of athocyonins of any other fruit.
The elderberry is used in traditional
medicine as a diaphoretic, and for sore throats.
|
Fig. 7 (a) Sambucus peruviana Kunth.
|
Fig. 7 (b) Sambucus peruviana Kunth.
|
Fig. 7 (c) Sambucus peruviana Kunth.
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Table 8. Eriobotrya japonica (Thunb.) Lindl. [Top]
|
Family |
Genus |
Species |
Complete scientific name |
Common name |
Rosaceae |
Eriobotrya japonica |
E. Japonica |
Eriobotrya japonica (Thunb.) Lindl. |
Níspero del Japón, loquat
|
Description |
Conservation status |
Images |
Eriobotrya japonica
is a species of flowering plant native to south-central China.
It is a large broad-leaf evergreen shrub or small tree, with a rounded crown,
short trunk, and wholly new twigs. The tree can grow to 5-10 m, but it is often smaller, 3-4 m.
It also often grows as a large spreading shrub.
It is generally noted for its compact size, attractive foliage, fragrant flowers and edible fruit.
The leaves are alternate, simple, 10-25 cm long, dark green, tough and leathery in texture,
with a serrated margin, and densely velvety-hairy below with thick yellow-brown pubescence; the young leaves are also densely pubescent above,
but this soon rubs off.
The wrinkled, strongly-veined, leathery, elliptic-lanceolate leaves
(to 12" long) with toothed margins are dark green above and light green covered with rusty down beneath.
Sweetly fragrant, five-petaled, white flowers in large panicles (to 6" long) bloom in late fall-early winter.
Loquats are unusual among fruit trees in that the flowers appear
in the autumn or early winter, and the fruits are ripe in late winter or early spring.
The flowers are 2 cm (1 in) in diameter, white, with five petals, and produced in stiff panicles of
three to ten flowers. The flowers have a sweet, heady aroma that can be smelled from a distance.
|
Not Evaluated (NE) |
Flowers are followed by small spherical to pear-shaped fruits (to 1-2" long), each with juicy flesh and one
to several large seeds. Fruits typically ripen in spring.
Fruits have smooth to downy, yellow to orange skin.
Fruits are excellent when eaten fresh off the tree or in salads, sauces, jellies/jams or tarts/pies.
|
Fig. 8 (a) Eriobotrya Japonica (Thunb.) Lindl.
|
Fig. 8 (b) Eriobotrya Japonica (Thunb.) Lindl.
|
Fig. 8 (c) Eriobotrya Japonica (Thunb.) Lindl.
|
Table 9.
Passiflora ligularis A. Juss. [Top]
|
Family |
Genus |
Species |
Complete scientific name |
Common name |
Passifloraceae |
Passiflora ligularis |
P. ligularis |
Passiflora ligularis A. Juss. |
Granadilla
|
Description |
Conservation status |
Images |
Passiflora ligularis, commonly known as sweet granadilla or grenadia, is native to the Andes Mountains between Bolivia, Venezuela and Colombia.
The epithet ligularis comes from the plant's ligulate corollae.
It likes climates ranging from 15° to 18° C and between 600 and 1000 mm of annual rain.
It lives at altitudes ranging from 1700 to 2600 meters above sea level.
It has abundant, simple leaves and greenish-white flowers.
It is a large herbaceous climber, to several meters in height, with stout tendrils.
Stems greyish, furrowed. Stipules large, 1-2.5 cm. Leaves ovate, cordate; margin entire;
petiole bearing prominent glands. Flowers 6-9 cm in diameter.
Bracts large, c. 3 cm, ovate. Sepals acute. Petals 3 cm, white or pinkish-white.
Corona in 5-7 rows, the filaments with white and purple bands. Fruit 6-8 cm, ovoid.
The fruit is orange to yellow colored with small light markings.
It has a round shape with a tip ending in the stem.
The fruit is between 6.5 and 8 cm long and between 5.1 and 7 cm in diameter.
The outer shell is hard and slippery, and has soft padding on the interior to protect the seeds.
The seeds, which are hard and black, are surrounded by a gelatinous sphere of transparent pulp.
The pulp is the edible part of the fruit and has a soft sweet taste.
It is very aromatic and contains vitamins A, C, and K, phosphorus, iron, and calcium.
|
Not Evaluated (NE) |
|
Fig. 9 (a) Passiflora ligularis A. Juss.
|
Fig. 9 (b) Passiflora ligularis A. Juss.
|
Fig. 9 (c) Passiflora ligularis A. Juss.
|
Table 10.
Tabebuia chrysantha (Jacq.) G. Nicholson. [Top]
|
Family |
Genus |
Species |
Complete scientific name |
Common name |
Bignoniaceae |
Tabebuia chrysantha |
T. chrysantha |
Tabebuia chrysantha (Jacq.) G. Nicholson. |
Guayacán, porotillo, yellow ipê, araguaney
|
Description |
Conservation status |
Images |
Tabebuia chrysantha (Araguaney or yellow Ipê), known as guayacan in Ecuador
and Colombia, as tajibo in Bolivia,
and as ipê-amarelo in Brazil, is a native tree of the intertropical broadleaf deciduous
forests of South America above the Tropic of Capricorn.
The araguaney dwells in clearings of deciduous tropical forests of the broad Guiana Shield
region. It is also native to warm lands and sabanas
and even some arid hills. Its habitat ranges 400 to 1700 m above sea level.
It is a rustic deciduous tree that defies hard, dry or poor soils.
Therefore, its roots require well drained terrain. Its height ranges 6 to 12 m.
Leaves are opposite and petiolate, elliptic and lanceolate, with pinnate venation.
Flowers are large, tubular shaped, with broadening corolla of deep yellow colour,
about 2 inches long; they come out (February to April) before the tree has grown back any leaves.
Flowering and fruiting take place in dry season, from February to April, this way the seeds
can take advantage of early rains. If the rainy season is delayed,
the guayacan may flower and fruit, mildly, a second time.
It is a highly efficient moisture manager.
|
Not Evaluated (NE) |
|
Fig. 10 (a) Tabebuia chrysantha (Jacq.) G. Nicholson.
|
Fig.10 (b) Tabebuia chrysantha (Jacq.) G. Nicholson.
|
Fig.10 (c) Tabebuia chrysantha (Jacq.) G. Nicholson.
|
Table 11.
Acacia macracantha Humboldt and Bonpland ex Willd. [Top]
|
Family |
Genus |
Species |
Complete scientific name |
Common name |
Mimosaceae (Fabaceae) |
Acacia macracantha |
A. macracantha |
Acacia macracantha Humboldt and Bonpland ex Willd. |
Faique
|
Description |
Conservation status |
Images |
Acacia macracantha is a tree species native to America, being found from Mexico to northwest Argentina.
The tree reaches a height of 4 m, and the trunk is heavy, of dark gray color.
The leaves have large thorns. The flowers are yellow, with fruit in the form of
pods filled with small brown seeds.
Acacia macracantha flowers and fruits during the rainy season.
It is found in disturbed areas, in gullies, slopes, and hills.
|
Not Evaluated (NE) |
|
Fig. 11 (a) Acacia macracantha Humboldt and Bonpland ex Willd.
|
Fig. 11 (b) Acacia macracantha Humboldt and Bonpland ex Willd.
|
Fig. 11 (c) Acacia macracantha Humboldt and Bonpland ex Willd.
|
Table 12.
Podocarpus sprucei Parl. [Top]
|
Family |
Genus |
Species |
Complete scientific name |
Common name |
Podocarpaceae |
Podocarpus sprucei |
P. sprucei |
Podocarpus sprucei Parl |
Guabisay, huapsay, romerillo
|
Description |
Conservation status |
Images |
Podocarpus sprucei is a species of conifer
in the Podocarpaceae family endemic to Ecuador and Peru.
It is a high montane species growing in cloud forest up to the tree line, at altitudes from 1,800 m to 3,900 m. Only in forests at lower altitudes does it become a tree to 20 m tall.
It produces seeds that are attractive to birds and mammals.
Their single-seeded fruits, 10-20 mm across, fit a common dispersal syndrome
of montane forest canopy and subcanopy trees.
The wood of this species is much in demand and trees are logged from primary forest often unsustainably due to scarcity and slow growth. It is used in house construction and to make furniture as it takes a fine polish.
Selective felling leads to forest degradation and is followed by the conversion of forest for agriculture and pastoralism.
Remaining forests are increasingly fragmented. Few trees remain in Peru
and there have been significant declines in Ecuador.
|
Endangered (EN) |
|
Fig. 12 (a) Podocarpus sprucei Parl.
|
Fig. 12 (b) Podocarpus sprucei Parl.
|
Fig. 12 (c) Podocarpus sprucei Parl.
|
Table 13.
Tipuana tipu (Benth.) O. Kunzte [Top]
|
Family |
Genus |
Species |
Complete scientific name |
Common name |
Fabaceae |
Tipuana tipu |
T. tipu |
Tipuana tipu (Benth.) O. Kunzte |
Pride of Bolivia, tipa, rosewood
|
Description |
Conservation status |
Images |
Tipuana tipu is a South American tree. It is the only species of the genus Tipuana.
It is a late deciduous tree; it likes full sun, it tolerates varied conditions, and grows rapidly.
Growing up to 30 m in height and 20 m wide,
this tree is well known for its use as a shade tree.
The leaves of the tree vary in length from 2 to 7 centimetres or more and they grow in clusters. The flowers are bright yellow in color and bloom only briefly in late summer. The fruit is a legume (pod) with the seed at one end, resembling a samara (the fruit of the Ash genus, Fraxinus).
It is a deciduous tree, shedding all its leaves and large "helicopter"
seed packets.
t produces masses of seeds, most of which succeed in germinating, and it can
withstand a very wide range of growing conditions, from low temperatures to salty soils to drought.
|
Not Evaluated (NE) |
|
Fig. 13 (a) Tipuana tipu (Benth.) O. Kunzte.
|
Fig. 13 (b) Tipuana tipu (Benth.) O. Kunzte.
|
Fig. 13 (c) Tipuana tipu (Benth.) O. Kunzte.
|
Fig. 13 (d) Tipuana tipu (Benth.) O. Kunzte.
|
Table 14.
Caesalpinia spinosa (Molina) Kunzte [Top]
|
Family |
Genus |
Species |
Complete scientific name |
Common name |
Caesalpiniaceae |
Caesalpinia spinosa |
C. spinosa |
Caesalpinia spinosa (Molina) Kunzte |
Changue, guarango, campeche, vainillo, tara, taya
|
Description |
Conservation status |
Images |
C. spinosa is native to Peru and can be found growing throughout northern,
western and southern South America, from Venezuela to Argentina.
In Loja, Ecuador, the tara
grows from the low dry areas to moist areas at 2000 m elevation.
It prefers the creeks and seasonal and/or permanent moisture.
It can reach a height of 5 m.
It typically grows 2-5 m tall; its bark is dark gray
with scattered prickles and hairy twigs.
Leaves are alternate, evergreen; they consist
of 3-10 pairs of primary leaflets uner 8 cm in length,
and 5-7 pairs of elliptic secondary leaftles,
each about 1.5-4.0 cm long.
The flowers are yellow to orange, with 6-7 mm petals.
The fruit is a flat, oblong pod, about 6-12 cm long and 2.5 cm wide, containing 4-7 round black seeds, which will
redden when mature.
|
Not Evaluated (NE) |
|
Fig. 14 (a) Caesalpinia spinosa (Molina) Kunzte.
|
Fig. 14 (b) Caesalpinia spinosa (Molina) Kunzte.
|
Fig. 14 (c) Caesalpinia spinosa (Molina) Kunzte.
|
Fig. 14 (d) Caesalpinia spinosa (Molina) Kunzte.
|
Table 15.
Delostoma integrifolium D. Don [Top]
|
Family |
Genus |
Species |
Complete scientific name |
Common name |
Bignoniaceae |
Delostoma |
D. integrifolium |
Delostoma integrifolium D.
Don |
Guaylo, yaloman
|
Description |
Conservation status |
Images |
This species' range is in the neotropical Americas.
It can be a shrub or a tree.
Its habitat is a hyperhumid, humid, or dry
montane forest, between 1800 and 2600 m elevation.
It has large rosy pink trumpet-shaped flowers, dark green
crinkled glossy leaves, with flowers in the winter and summer; minimum -2°C.
The tree can reach a height of 15 m, and
its trunk can reach a diameter of 40 cm.
Its canopy is irregular; its leaves are simple, opposite,
they measure 12 cm in length by 8 cm in width, and they are pointed at the end.
The flowers are about 5 cm long, of white and pink color,
ending in five petals of violet color with purple lines.
The fruit is somewhat flat, angled at the end, of green color, turning brown when ripe.
Each fruit contains a large number of seeds.
|
Not Evaluated (NE) |
|
Fig. 15 (a) Delostoma integrifolium D.
Don.
|
Fig. 15 (b) Delostoma integrifolium D.
Don.
|
Fig. 15 (c) Delostoma integrifolium D.
Don.
|
|