650 GESNERIACE#. 
ers, and only a single stem in a pot, or it will not grow strong 
enough to flower. The rest of the species flower freely, and 
strike readily from cuttings. The leaves of G. speciósa, and 
probably of most others, if taken off close to the stem, and 
planted, will strike root, and make each a plant. 
Subtribe II. 
Conravie'z (this section agrees with Conradia in the cha- 
racter given below.) Calyx adnate to the ovarium. Corolla 
superior. Leaves alternate or scattered, not opposite, as in the 
last section. 
IV. RYTIDOPHY'LLUM (from puric fvricoc, rytis rytidos, 
a wrinkle; and $vAXov, phyllon, a leaf; leaves blistered.) 
Mart. nov. gen. bras. 3. p. 38.—Gesnéria species, Lin. and 
Swartz. 
Lin. syst. Didynamia, Angiospérmia. Calyx wholly ad- 
nate to the ovarium ; limb 5-toothed or 5-cleft. Corolla supe- 
rior, campanulate, constricted in the middle; limb 5-lobed. 
Stamens 4, didynamous, with the rudiment of a fifth behind ; 
anthers free or anisogeneous, and cohering. Disk epigynous, 
thick, annular, sinuous. Capsule dry, combined with the some- 
what 5-ribbed calyx; top flat, 2-valved ; placentas 2, parietal, 
many-seeded.—Small trees and shrubs, with fibrous roots. 
Branches alternate and scattered, hairy. Leaves stipulate, on 
short petioles, scattered, very hairy beneath; the parenchyma 
in the upper surface elevated into small blisters, each bearing a 
hair at apex. Flowers cymose, on peduncles which rise from 
the axils of the superior leaves, green, of one colour, or spotted 
with blood-colour, or wholly blood-coloured. 
1 R. romentosum (Mart. l. c. p. 39.) branches hairy; sti- 
pulas roundish, revolute, crenated, tomentose ; leaves oblong, 
acuminated, narrowed at both ends, serrated, reticulated, and 
clothed with hoary pubescence beneath, and papillosely rough 
above; corymbs axillary, on long peduncles; calyx villous, 
with a 5-parted equal limb. `h. S. Native of tropical Ame- 
rica, on the banks of rivers and rivulets. Gesnéria tomentósa, 
Lin. spec. 851. Mill. dict. no. 1. Jacq. amer. 179. t. 175. 
f. 64. pict. 89. t. 261. f. 2. Sims. bot. mag. 1023. Codoné- 
phora lanceolata, Lindl.—Sloane, hist. 1. p. 162. t. 104. f. 2. 
Corollas spotted with yellow and dark purple. What is Ges- 
néria tomentósa, H. B. et Kunth, nov. gen. 2. p. 396, which is 
described as a herbaceous plant, with a fusiform root, a simple 
procumbent stem, and opposite leaves. 
Tomentose Rytidophyllum. Clt. 1759. Shrub 2 to 4 feet. 
2 R. cra’npe (Mart. l. c.) branches hairy; leaves broad- 
lanceolate, very long, denticulated, hairy, scabrous above, petio- 
late; peduncles long, terminal and axillary, dichotomous; pedi- 
cels usually 3-flowered ; segments of calyx acute, equal. h.S. 
Native of Jamaica, on the mountains. Gesnéria grándis, Swartz. 
prod. 89. fl. ind. occ. 2. p. 1018. Leaves scabrous and white 
beneath. Flowers large, greenish-yellow. Corolla irregular, 
dilated at the base; limb ventricose towards the top; upper 
lip large, arched, bifid. 
Great Rytidophyllum. Shrub 6 to 15 feet. 
3 R. BrnrERoA'NuM (Mart. l. c.) branches densely hairy; 
stipulas subulate; leaves lanceolate, acuminated at both ends, 
doubly toothed, scabrous from hairs beneath, and papillosely 
rough above; calyx villous, with setaceously elongated seg- 
ments. b. S. Native of the island of St. Domingo, on 
rocks. Gesnéria scàbra, Spreng. syst. 2. p. 838. but not of 
Swartz. 
Bertero's Rytidophyllum. Shrub. 
Cult. This is a beautiful genus, like the rest of the present 
IV. RvriporHYLLUM. 
V. Conrapta. 
order. A light rich earth, vegetable mould, or a mixture of 
loam, sand, and peat, is good soil for the species; and cuttings 
strike root readily in heat. 
V. CONRA'DIA (named after Conrad Gesner, see Gesnéria.) 
Mart. nov. gen. bras. 3. p. 38.  Gesnéria species, Plum. and 
Swartz. 
Lin. syst. Didynamia, Angiospérmia. Calyx wholly adnate 
to the ovarium ; limb 5-cleft or 5-toothed, free. Corolla supe- 
rior, tubular or campanulate ; limb somewhat equally 5-cleft. 
Stamens 4, didynamous, with the rudiment of a fifth bebind; 
anthers usually cohering into a round head. Glands or disk 
wanting. Capsule dry, clothed with a 5 or 10-ribbed calyx, 
flat on the top, 2-valved; placentas 2, parietal, many-seeded. 
Seeds scobiform.—Shrubs, rarely herbs, with fibrous roots. 
Branches alternate or scattered. Leaves petiolate, alternate, or 
scattered, towards the tops of the branches, rough from stiffish 
white hairs, particularly on the nerves and veins, rarely glabrous, 
usually toothed. Flowers disposed in few-flowered cymes, on 
peduncles which rise from the axils of the upper leaves, red or 
green, spotted with blood-colour, white or pale. 
Sect. I. Synantue‘ra (from cv», syn, together ; and av0npa, 
anthera, an anther.) Stamens inclosed. Anthers all connected 
into a round head. 
1 C. nv uiris (Mart. |. c.) leaves lanceolate, serrated, sessile ; 
peduncles dichotomous, 3-7-flowered, very long ; calyx campa- 
nulate, 5-toothed ; corolla campanulate, irregular. Ñ. S. Na- 
tive of Tropical America, and the West Indies. G. humilis, 
Lin. spec. 850. G. hümilis flore flavescente, Plum. gen. 27. 
icon. 133. f. 2. Corolla yellowish green, with dark spots 
within. 
Humble Conradia. Shrub 2 feet. 
2 C. cranroza‘riA (Mart. l. c.) leaves cuneate-obovate, acute, 
sub-runcinate, toothed, glabrous above, and hairy beneath ; calyx 
downy, with linear lanceolate, reflexed segments ; corolla cam- 
panulate; limb nearly regular. h.S. Native of Hispaniola, 
among broken rocks on the mountains. Gesnéra craniolària, 
Swartz, prod. 89. fl. ind. occ. 2. p. 1015. Craniolaria fruticosa, 
Lin. spec. 861.—Plum. gen. 27. icon. t. 137. Leaves 4-6 
inches long. Corolla green outside, hairy, and dark purple. 
Margins of the segments of the lower lip of corolla laciniately 
jagged. 
Craniolaria-like Conradia. Shrub 3 to 4 feet. 
3 C. sca‘pra (Mart. l. c.) leaves ovate-lanceolate, serrated, 
scabrous ; calyx scabrous, with ovate, acute, blood-coloured seg- 
ments ; corolla incurved, cylindrical: limb nearly equal. b. 
Native of Jamaica, on calcareous rocks. Gesnéria scàbra, 
Swartz, prod. 89. fl. ind. occ. 2. p. 1020. Leaves petiolate, 
scabrous above, wrinkled, hispid, and hoary beneath. Corolla 
small, blood red. 
Scabrous Conradia. Shrub 2 to 4 feet. 
Secr. Il. DirrAwTHERA (from roc, dittos, twin ; and 
avðnpa, anthera, an anther.) Stamens exserted ; anthers con- 
nected by pairs. 
4 C. venrricdsa (Mart, l. c.) leaves elliptic, acuminated, 
crenated, glabrous; peduncles usually 4-flowered ; calycine 
segments subulate, elongated ; corolla cylindrical, incurved : 
segments of the lower lip crenately ciliated. h.S. Native of 
Jamaica, Martinique. Gesnéria ventricdsa, Swartz, prod. p. 90. 
fl. ind. occ. 2. p. 1028. Pentaraphia longifldra, Lindl. Leaves 
