646 
behind ; anthers at first cohering into a round head. Glands 5, 
or fewer around the ovarium. Capsule dry in the calyx, 1- 
celled, incompletely 2-valved ; placentas 2, parietal, many- 
seeded. Seeds scobiform.—Perennial plants, furnished with 
solid fleshy tubers of various forms; but in most of the species 
these tubers are nearly globose or placentiform, which send 
forth the stems every year. The plants are beset with com- 
pound, articulated hairs, and often with glandular, clammy pili. 
Stems simple, or branched, woody, or annual, terete, rarely 
angular. Leaves opposite, or verticillate, on short petioles, 
entire, toothed, or serrated, thickish, clothed with soft villi, 
which is often silky, but paler and more densely villous beneath. 
Buds naked. Leaves complicate. Flowers disposed in opposite 
cymes, constituting a terminal thyrse; the peduncles furnished 
with floral leaves, or bracteas at the base: rarely disposed in 
racemes or spikes. Corollas scarlet, or purple, rarely green, of 
one colour, or spotted with others, usually pubescent. This 
beautiful genus is diffused throughout the tropical parts of 
America, particularly in the fissures of moist rocks, and in 
shady, moist places. : 
* Peduncles radical. 
1 G. rusEROsA (Mart. nov. gen. bras. 3. p. 29. t. 212.) stem 
rhizomatoid, horizontal, marked by the cicatrices of the fallen 
leaves; leaves opposite, broad-ovate, toothed, cordate at the 
base, clothed with soft pubescence, but hairy on the nerve and 
veins beneath; peduncles from the base of the rhizomatose 
roots; limb of corolla erectish, nearly equal; hypogynous 
glands twin behind. )/. S. Native of Brazil, in the mine pro- 
vinces near Villa Rica, in the fissures of rocks. Tuber nearly 
globose, 1 to 13 inch in diameter. Peduncles radical, erect, 
numerous. Corollas tubular, erect, scarlet. 
Tuberous-rooted Gesneria. Pl. 3 foot. 
** Cymes terminal, umbellate. 
2 G.muPrcora (Mart. nov. gen. bras. 3. p. 30. t. 213.) the 
whole plant villously pubescent; stem a span high, leafless at 
top; leaves opposite, on short petioles, broad ovate, or obovate, 
purplish beneath, crenated ; cymes terminal; limb of corolla 
erectish, nearly equal; hypogynous glands 5. Y%.S. Native 
of Brazil, in the mine provinces, in high, exposed places. Tuber 
size of a filbert or walnut. Superior part of stem scape-form- 
ed. Floral leaves 2, sessile, under the cyme. Corollas tubular, 
scarlet. 
Rock Gesneria. Pl. 4 to $ foot. 
3 G. caxE'scENs (Mart. l. c. p. 36.) clothed with hoary villi; 
stem erect; leaves opposite, and 4 in a whorl, broad-ovate, 
acutish at both ends, a little toothed ; cymes terminal, few-flow- 
ered; corolla clavately cylindrical: limb short, nearly equal; 
hypogynous glands 2, behind. Y%. S. Native of Brazil, in 
shady rocky places in the province of St. Paul, and on Serra do 
Mar. Stem purplish. Leaves 1 to 1i inch long. Cyme of 
346-8 flowers. Floral leaves under the cyme sometimes 4. 
Corolla scarlet, an inch long. Hypogynous glands linear-ob- 
long, truncate. 
Canescent Gesneria. Pl. $ to 1 foot. p 
4 G. Dovera'su (Lindl. in bot. reg. t. 1110. Mart. nov. 
gen. bras. 3. p. 33.) clothed with fine pubescence ; stem erect ; 
leaves falsely verticillate, 4-5-6, rarely opposite, ovate, acute, 
crenately toothed ; cyme terminal, simple, or compound ; limb 
of corolla nearly equal; hypogynous glands twin behind. %. 
H. Native of Brazil, in woods near Rio Janeiro, and in the 
tract of mountains of Serra do Mar, in various places. G. 
maculata, Mart. nov. gen. bras. t. 215. G. verticillàta, Hook. 
GESNERIACE#. 
II. GESNERIA. 
bot. mag. t. 2776. Tuber nearly globose, 1} to 2 inches in 
diameter. Stems solitary, or numerous from the same tuber. 
Corollas 14 inches long, drooping, rose-coloured, irregularly 
marked with longitudinal, blood-coloured, or brownish blood- 
coloured stripes and spots. 
Douglas's Gesneria. Fl. Aug. Sept. 
3 feet. 
* ** Peduncles axillary, 2, or many-flomered, cymose. 
Cit. 1826. Pl. 2 to 
5 G. vatiroria (Mart. in Otto, et Link, verh. bot. gart. 5. p. 
218. t. 1. nov. gen. bras. p. 34.) plant tomentosely villous; 
stem erect; leaves opposite, broad, or orbicularly-ovate, obtuse, 
or elliptic, coarsely toothed; cymes axillary, crowded upwards 
into a terminal thyrse ; corolla cylindrical, with an equal tube; 
limb short, erect, nearly equal; hypogynous glands 2, behind. 
X. S. Native of Brazil, in the provinces of St. Paul, and Minas 
Geraes, in shady, rocky places. Tuber large, a span in diameter, 
placenta-formed. Stems simple, numerous from the same root. 
Leaves 4-7 inches long. Cymes 5-12-flowered. Corolla an 
inch long, beautiful scarlet, villous outside; tube broadly bi- 
gibbous from the base downwards. 
Broad-leaved Gesneria. Pl. 14 to 2 feet. 
6 G. accreca'ra (Ker. bot. reg. t. 329.) clothed with sub- 
viscid villi; stem erect, branched; leaves opposite, rarely 3 in 
a whorl, oblong-ovate, acutish at both ends, villous, especially 
on the veins beneath, crenated ; peduncles axillary, 2-4-6-flow- 
ered, verticillate, 2 to 8, length of corolla, which is coarsely bi- 
gibbous behind, clavately cylindrical: limb nearly equal, erect ; 
hypogynous glands 4-5. %4. S. Native of Brazil, in woods 
about Rio Janeiro, and elsewhere. G. pendulina, Lindl. bot. 
reg.t. 1032. This species agrees in some points with the G. 
latif dlia, particularly in the form of the corolla. Corolla before 
florescence often tricoloured ; that is, scarlet at the base, yellow 
in the middle, and greenish at top ; tube broadly bigibbous from 
the base downwards. The 2 hind hypogynous glands are often 
combined in one. 
Aggregate-flowered Gesneria. Fl. July, Aug. Cit. 1816. 
Pl. 2 feet. 
7 G. Dzrrra'wa (Cham. et Schlecht, in Linnea, 5. p. 110.) 
tomentum on the superior surfaces of the leaves soft, not stri- 
gosely scabrous; that on the lower surfaces yellowish white, 
not fuscescent ; the crenze, tomentum of stems, and peduncles 
spreading, not reflexed; anthers exserted ; segments of calyx 
narrower, more acute, triangular, and the leaves more elongated 
than in G. elongata, H. B. et Kunth. 44. S. Native of Mex- 
ico, in the woods of Jalapa ; and at the Hacienda de La Laguna. 
G. vetulina, Willd. herb. no. 11253. Nearly allied to G. ag- 
gregata, Ker. but differs in the broad, ovate, acuminated, acute 
calyxes, and the smaller corollas, which are also scarlet. 
Deppe’s Gesneria. PI. : 
8 G. suLsòsa (Ker. bot. reg. t. 343.) villous; stem erect ; 
leaves opposite, broad-ovate, cordate, acutish, serrately cre- 
nated; cymes many-flowered, spreading from the axils of the 
leaves, and disposed upwards into a terminal thyrse; superior 
lip of corolla very long ; hypogynous glands 2, behind. X.$ 
Native of Brazil, in shady rocky places at Villa Rica; also on 
the mountains of Serra dos Orgaos, at the altitude of 2500 to 
3000 feet. Leaves very like those of G. latifólia ; but 1s dis- 
tinguished by the figure of the corolla. It is very variable in 
the size of the corolla; and the cymes are sometimes all crowd- 
ed into a terminal thyrse, and sometimes others are axillary. 
Corollas scarlet. 
; Bulbous-rooted Gesneria. Fl. May, July. Cit. 1816. Pi. 2 
eet. 
9 G. Serròwu (Mart. 1. c.) stem pilose, branched; leaves 
