82 APOCYNEJE. XV. Apocynum. XVI. 
2. The Chinese physicians fancy the roots of this plant to 
refresh the animal spirits to such a degree as by a long use of 
it to endow old age with all the strength and vigour of youth. 
Youthful Apocynum. Shrub tw. 
15 A.sca'wpENs (Mill. dict. no. 5.) leaves oblong, cordate, 
stiff; flowers lateral; stem fruticose, twining. h. ^O. S. Na- 
tive about Carthagena. A. scandens foliis citri, siliquis macu- 
latis. Plum. cat. no. 2. Leaves quite glabrous. Racemes 
short. Flowers green. 
Climbing Apocynum Shrub tw. 
16 A. nervosum (Mill. dict. no. 9.) stem fruticose, scandent ; 
leaves ovate, nerved; cymes lateral; flowers yellow, large, with 
a very long tube. h. J. S. Native of Carthagena. Leaves 
mucronate.  Follicles compressed, marginated on one side. 
Seeds striated. 
Nerved-leaved Apocynum. Shrub cl. 
17 A. corpa‘tum (Mill. dict. no. 10.) leaves oblong-cordate, 
mucronate, sessile; flowers lateral; stems scandent. hk. S. 
Native of Vera Cruz. Houst. mss. fig. pl. no. 8. t. 44. f. 5. 
Flowers large, yellow. Probably a species of Echites. 
Cordate-leaved Apocynum. Shrub cl. 
18 A. vitLdsum (Mill. dict. no. 11.) leaves cordate, glabrous ; 
flowers villous, sessile, longer than the petioles; stem scandent. 
h. u. S. Native of Vera Cruz. Houst. mss. pl. t. 44. f. 2. 
Flowers large, villous, yellow. Follicles tumid, angular. Per- 
haps a species of Echites. i 
Villous Apocynum. Shrub cl. 
Cult. Common garden soil answers well for the species; and 
they are easily increased by suckers from the root, which in 
most of the species rise in great numbers. Some of the rarer 
kinds may be grown in a peat border with greater success. 
XVI. CRYPTOLE'`PIS (from kpvrrw, krypto, to hide, and 
Nemec, lepis, a scale; in reference to the scales in the tube of 
the corolla). R. Br. in wern. mem. soc. 1. p. 69. 
Lin. syst. Pentándria, Monog?jnia. Corolla funnel-shaped ; 
tube inclosing 5 obtuse, wedge-shaped scales, which alternate 
with the segments of the limb; throat naked. Stamens in- 
closed, inserted in the bottom of the tube; anthers sagittate. 
Ovaria 2. Style wanting ; stigma dilated, 5-sided, ending 
in a conical point. Hypogynous scales 5. Follicles lanceolate, 
horizontal.—Shrubs twining. Leaves opposite, of a different 
colour beneath, and veiny. Corymbs interpetiolar, almost ses- 
sile, very short. 
1 C. BucuaxA x1 (Roem. et Schultes, syst. 4. p. 409.) flowers 
small, yellow ; leaves oblong, white and veiny beneath ; corymbs 
interpetiolar, almost sessile. bh. ^. S. Native of the East 
Indies. Nérium reticulàtum, Roxb. fl. ind. 2. p. 9. C. 
Wightiàna, Wall. cat. no. 4457. and C. reticulàtum, Wall. cat. 
1640. are only different states of C. Buchanani. 
Buchanan’s Cryptolepis. Shrub tw. ; 
2 C. £'Lecans (Wall. cat. no. 1639.) leaves oblong, mucro- 
nate, glaucous beneath, somewhat cordate at the base ; peduncles 
terminal, panicled. bh. S. Native of Silhet and Goalpara. 
Caméttia tenélla, Hamilt. mss. 
Elegant Cryptolepis. Shrub tw. 
Cult. See Echìtes, p. 76, for culture and propagation. 
XVII. EXOTHOSTE MON (ctwðw, exotho, to protrude, 
and ornpwy, stemon, a stamen; in reference to the exserted 
stamens).—Echites species, H. B. et Kunth, &c. and some 
other authors. 
Lin. syst. Pentándria, Monogynia. Calyx 5-parted; segments 
each furnished with a scale inside at the base. Corolla funnel- 
shaped; throat clothed with silky hairs ; segments of the limb 
unequal-sided, roundish on one side and acuminated or angular 
Cryrroteris. XVII. Exornostemon. 
on the other. Stamens exserted; filaments short, dilated at 
top, pilose inside ; anthers oblong or oblong-linear, emarginately 
2-lobed at the base, cohering with the stigma. Ovaria twin, 
girded by 5 hypogynous, fleshy scales. Style filiform. Fol- 
licles slender, torulose.—T'wining shrubs, natives of South Ame- 
rica. Leaves opposite, with interpetiolar glands at the base. 
Peduncles interpetiolar, racemose. Flowers showy, white, or 
yellow. This genus comes near to Parsónsia or Fosterónia, 
Meyer. 
1 E. snacrEA' TUM ; leaves elliptic, mucronately cuspidate, 
cordate, downy above, but canescent from tomentum beneath ; 
bracteas large, ovate, acuminated, coloured, much longer than 
the calyx. hk. ^. S. Native of New Granada, near Mari- 
quita, in the temperate regions of the mountains. Echites 
bracteata, H. B. et Kunth, nov. gen. amer. 3. p. 217. Glands 
about 4, subulate, glabrous, situated at the base of the middle 
nerve of each leaf. Calycine segments lanceolate; with a 
subulate point, with ovate deltoid scales inside. Corollas orange- 
coloured, hairy outside. 
Bracteate Exothostemon. Fl. June. Shrub tw. 
2 E. mottissimum ; leaves oblong-cordate, downy above, but 
canescent from short hair-like tomentum beneath ; bracteas 
lanceolate-subulate, about equal in length to the calyx. .™.S. 
Native of New Granada, between Honda and the mine of San- 
tanna. Echites mollissima, H. B. et Kunth, nov. gen. amer. 3. 
p.218. Leaves without glands at the base?  Calycine seg- 
ments ovate, acuminated, furnished each with an ovate, lanceolate 
scale inside. Corollas yellow, hairy outside. 
Very soft Exothostemon. FI. July. Shrub tw. 
3 E. MACROPHY'LLUM; leaves somewhat obovate-elliptic, cus- 
pidate, cordate, clothed with adpressed hairs above, and sub- 
canescent hair-like down beneath; bracteas ovate-lanceolate, 
about equal in length to the calyx. h.%.S. Native of the 
banks of the Orinoco, near San Borja; and of the island of 
Panunama.  Echites macrophylla, H. B. et Kunth, nov. gen. 
amer. 3. p. 218.  Echites móllis, Willd. herb. ex Roem, et 
Schultes, syst. 4. p. 795. Glands at base of leaves hardly seen. 
Corollas yellow, size of those of Vinca rdsea, downy outside. 
Segments of calyx lanceolate-oblong, acuminated, furnished 
each with a scale inside. Leaves 5 inches long and 23 broad. 
Long-leaved Exothostemon. Fl. May. Shrub tw. 
4 E. GRA'CILE; leaves oblong-lanceolate : superior ones lan- 
ceolate, acuminated, cordate, glabrous above and hairy beneath; 
bracteas lanceolate-subulate, about equal in length to the pedi- 
cels; calycine segments ovate-lanceolate, furnished each with 
an ovate deltoid scale inside. h.^.S. Native on the banks 
of the river Orinoco, in humid places, between Maypure and 
Ature. Echites gracilis, H. B. et Kunth, nov. gen. amer. 3. 
p.219. Leaves 24 inches long; with the glands at the base 
hardly visible. Corollas yellow, glabrous outside. 
Slender Exothostemon. Fl. May. Shrub tw. 
5 E. sPEciósuM; leaves oblong, acuminated, cordate, glabrous 
above, and hairy beneath; bracteas linear-subulate, minute ; 
calycine segments ovate, acuminated, furnished each with a scale 
inside. h.^. $. Native along with the preceding.  Echites 
speciósa, H. B. et Kunth, nov. gen. amer. 3. p. 219.  Corollas 
yellow. Leaves 23 inches long, furnished with glands inside at 
the base. 
Showy Exothostemon. Shrub tw. 
6 E. JavirE'NsE; leaves elliptic-oblong, short-acuminated, 
rounded at the base, smoothish above and roughish beneath ; 
Spikes terminal, solitary; bracteas large, oblong, acuminated, 
coloured; calycine segments roundish-ovate, obtuse, furnished 
each with a scale inside. p.^.S. Native in the Missions of 
the Orinoco, in shady places, on the banks of the river Temi, 
near Javita.  Echites Javiténsis, H. B. et Kunth, nov. gen. 
