664 RUBIACEZ, CCXXII. PsıLoBIUM. 
blue, hairy. Seeds triquetrous, dark brown, beset with elevated 
dots. 
Silky Lipostoma. 
Pl. trailing. 
Cult. 
For culture and propagation see Richardsonia, p. 628. 
+ Genera of Rubidcee not so sufficiently known as to be 
placed in any particular situation in the body of the order. 
CCXXII. PSILO'BIUM (from paoc, psilos, slender, and No- 
Boc, lobos, a pod; in reference to the silique-formed fruit). 
Jack, in mal. misc. vol. 2. ex Roxb. fl. ind. 2. p. 820. D.C. 
prod. 4. p. 618. 
Lin. syst. Pentdndria, Monogynia. Limb of calyx spread- 
ing, 5-parted. Corolla with a short tube, and a 5-parted limb. 
Stamens 5, fixed to the base of the corolla. Stigma clavate, 
10-winged, exserted. Fruit cylindrical, silique-formed, crowned 
by the permanent calyx, 2-celled, many-seeded. Seeds dis- 
posed in a double series along the axis in each cell.—Indian 
shrubs. Stems bluntly tetragonal. Leaves opposite, petiolate, 
lanceolate. Stipulas broad, keeled. Flowers axillary, brac- 
teate. Æstivation valvate. It is not said whether the fruit is 
dehiscent or indehiscent. 
1 P. nu‘rans (Jack, l. c.) smooth ; peduncles drooping, 3-6- 
flowered. h. S. Native of Sumatra, in the interior of the 
island. 
Drooping-peduncled Psilobium. Shrub. 
2 P. romentosum (Jack. l. c.) tomentose; flowers almost 
sessile in the axils of the leaves. h. S. Native of the East 
Indies, at Katoun. Fruit said to be baccate. 
Tomentose Psilobium. Shrub. 
Cult. See Psyché:ria,'p. 599. for culture and propagation. 
CCXXIII. PLATYME'RIUM (from wAarvc, platys, broad, 
and peptic, meris, a part; probably from the parts of the flowers 
being broad). Bartl. in herb. Henke. D. C. prod. 4. p. 619. 
Lin. syst. Tetra-Pentdndria, Monogynia. Calyx with a short 
tube, and a rotate 5-parted, rarely 4-parted limb ; lobes flat, 
obtuse. Corolla coriaceous, funnel-shaped, with a short tube, 
which is woolly inside, and a 5-parted, rarely 4-parted limb; 
segments of the limb twisted to the right in ezstivation. Anthers 
linear, sessile within the tube of the corolla. Style clavate, 
spirally 10-ribbed. Ovarium 2-celled, covered by an epigy- 
nous disk. Fruit unknown.—A_ shrub, with slender terete 
branches. Leaves opposite, coriaceous, lanceolate, acuminated, 
downy beneath and on the branches, on short petioles. Flowers 
numerous, glomerate, on short pedicels, axillary. Calyxes to- 
mentose.—This genus is nearly allied to Psilòbium, but is dis- 
tinguished from it in the estivation of the corolla, and in the fruit 
not being silique-formed. 
1 P. Gtomera‘tum (Bartl. in herb. Henke, ex D. C. prod. 4. 
p. 619.) hk. S. Native of the island of Luzon, one of the 
Philippines. Leaves 34 inches long and 1 broad. Flowers small. 
Glomerate-flowered Platymerium. Shrub. 
Cult. For culture and propagation see Psychétria, p. 599. 
CCXXIV. STIPULA'RIA (so named on account of the large 
stipulas). Beauv. fl. d’ow. 2. t. 76. Juss. mem. mus. 6. p. 406. 
D. C. prod. 4. p. 619. 
Lin. syst. Penténdria, Monogjnia. Calyx small, tubular, 
with a 5-toothed border. Corolla tubular, slender. Stamens 5? 
Style and fruit unknown.—Stems quadrangular. Leaves oppo- 
site, petiolate, ovate, acute at the apex, acuminated at the base, 
yellowish beneath, soft to the touch. Stipulas large, interpe- 
tiolar, broadly ovate, acute, glabrous. Heads of flowers almost 
sessile, surrounded by large 5-toothed calyciform villous invo- 
lucra. The place which this genus should occupy in the order 
is very doubtful. 
CCXXIII. PLATYMERIUM. 
CCXXIV. Srieutaria. CCXXV. Benzonra, &c. 
1 S. Arrica‘na (Beauv. fl. d’ow. 2. p. 26. t. 75.) Native of 
the west coast of Africa, in deserts about the river Galbar: we 
have also seen it in the neighbourhood of the Gaboon river. 
Flowers pale yellow. 
African Stipularia. Shrub. 
Cult. For culture and propagation see Psychétria, p. 599. 
CCXXV. BENZO‘NIA (named in compliment to the cele- 
brated African traveller Benzoni, who died at Benin, the habi- 
tat of the present plant). Schum. pl. guin. p. 113. D. C. prod. 
4. p. 620. 
Lin. syst. Tetrdndria, Monogynia. Calyx with a globose 
tube, and a small 5-toothed limb; teeth erect. Corolla tubular, 
coriaceous, 5-cleft; segments concave, cup-shaped. Anthers 
triquetrous, sessile in the throat. Style filiform ; stigma ovate- 
globose, acutish, marked by 6-7 longitudinal furrows. Fruit 
unknown.—A shrub, native of Guinea. Branches terete, beset 
with pili above, and with papillze below. Leaves opposite, ovate- 
oblong, acuminated, glabrous, on short hairy petioles. Stipulas 
interpetiolar, lanceolate, glabrous. Peduncles axillary, dichoto- 
mous, corymbose, and are as well as the bifid pedicels hairy. 
1 B. corympdsa (Schum. pl. guin. p. 113.) kh. S. Native of 
Guinea, in various parts. 
Corymbose-fiowered Benzonia. Shrub 5 to 6 feet. 2 
Cult. See Psychétria, p. 599. for culture and propagation. 
CCXXVI. HIMATA'NTHUS (from iparıov, himation, a gar- 
ment, and ay@oc, anthos, a flower ; the flowers are involucrated 
by a large bractea before expansion). Willd. rel. ex Roem, et 
Schultes, syst. 5. p. 13. D. C. prod. 4. p. 621. 
Lin. syst. Pentdndria, Monogiynia. Tube of calyx adnate to 
the ovarium, turbinate ; limb loose, permanent, 5-parted ; seg- 
ments ovate, acuminated, 2 of them one-half smaller than the 
other three. Corolla funnel-shaped, having the tube much 
longer than the calyx, dilated a little at the apex ; and the limb 
5-cleft, with oblong segments. Stamens 5, capillary, very short, 
inserted in the base of the tube. Anthers linear, erect, shorter 
than the tube of the corolla. Style truncately clavate ; stigma 
subulate. Ovarium 2-celled, 2-seeded.—A tree. Leaves ellip- 
tic-lanceolate, petiolate, quite entire, glabrous. Flowers spicate, 
sessile, involucrated by a large deciduous bractea each before 
expansion.—This tree belongs probably to Rubiacee, but the 
stipulas and situation of the leaves, seeds, &c. are unknown. i 
1 H. rrepa (Hoffm. ex Willd. 1. c.) h. S. Native 0 
Brazil, in the province of Para, where it is called Sucuba by the 
natives. 
Stiff Himatanthus. Tree. ; 
Cult. For culture and propagation see Psychétria, p. 599- 
CCXXVII. SICKI'NGIA (evidently named after sone p 
son of the name of Sicking, of whom we know nothing). W illd. 
in nov. act. nat. cur. beroi. 3. p. 445. and in Schrad. bot. journ. 
1800. pt. 2. p. 291. D.C. prod. 4. p. 621. 5- 
Lin. syst. Pentándria, Monogynia. Calyx p É 
toothed. Corolla campanulate, 5-toothed : teeth oblong. de 
ments 5, inserted in the middle of the corolline tube. Ane 
linear, exserted. Stigma 1. Capsule woody, 2-valved. sai 
winged.— Trees, natives of Caraccas. Leaves opposite. ‘Flow’ 
terminal, trichotomous, panicled, sweet-scented. This is a et 
doubtful genus from the description given by Willdenow ; x 
according to Richard it is related to Cinchonàceæ, in cons F 
quence of the winged seeds; but the stipulas are not mentom 
and the leaves are said to be deeply and remotely toothed if 
therefore it ought probably to be excluded from Ratiat F 
1 S. eryTHRO'XYLON (Willd. l. c.) leaves oblong-rhombo!® 
