C64 RUBIACEjE. CCXXIt. PSILOBJUM. CCXXIII. PLATYMERIUM. CCXXIV. STIPULARIA. CCXXV. BENZONIA, &c. 



blue, hairy. Seeds triquetrous, dark brown, beset with elevated 

 dots. 



Silky Lipostoma. PI. trailing. 



Cult, For culture and propagation see Richardsonia, p. 628. 



f Genera of Rubiacece not so sufficiently known as to be 

 placed in any particular situation in the body of the order. 



CCXXII. PSILO'BIUM (from ^tXoc, psilos, slender, and \o- 

 /3oc, lobos, a pod; in reference to the silique-formed fruit). 

 Jack, in mal. misc. vol. 2. ex Roxb. fl. ind. 2. p. 320. 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- 

 tcate. .(Estivation valvate. It is not said whether the fruit is 

 dehiscent or indehiscent. 



1 P. NUBIANS (Jack, 1. c.) smooth ; peduncles drooping, 3-6- 

 flowered. fj . S. Native of Sumatra, in the interior of the 

 island. 



Drooping-pedundeA Psilobium. Shrub. 



2 P. TOMENTOSUM (Jack. 1. c.) tomentose ; flowers almost 

 sessile in the axils of the leaves. Jj . S. -Native of the East 

 Indies, at Katoun. Fruit said to be baccate. 



Tomentose Psilobium. Shrub. 



Cult. See Psychotria, p. 599. for culture and propagation. 



CCXXIII. PLATYME'RIUM (from 7r\a , platys, broad, - 

 and ficpic, meris, a part ; probably from the parts of the flowers 

 being broad). Bartl. in herb. Hsenke. D. C. prod. 4. p. 619. 



LIN. SYST. Telra-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 wcolly inside, and a 5-parted, rarely 4-parted limb ; 

 segments of the limb twisted to the right in aestivation. 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 Psilobium, but is dis- 

 tinguished from it in the aestivation of the corolla, and in the fruit 

 not being silique-formed. 



1 P. GLOMERA'TUM (Bartl. in herb. Haenke, ex D. C. prod. 4. 

 p. 619.) ?7 . S. Native of the island of Luzon, one of the 

 Philippines. Leaves 3| inches long and 1 broad. Flowers small. 



Cr/owmzte-flowered Platymerium. Shrub. 



Cult. For culture and propagation see Psychotria, 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. Pentdndria, Monogynia. 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. 



1 S. AFRICA'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 Psychotria, 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). Sehum. pi. guin. p. 113. D. C. prod. 

 4. p. 620. 



LIN. SYST. Telrdndria, 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, acuti.sh, marked by 6-7 longitudinal furrows. Fruit 

 unknown. A shrub, native of Guinea. Branches terete, beset 

 with pili above, and with papillae 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. CORKMBOSA (Schum. pi. guin. p. 113.) (j . S. Native of 

 Guinea, in various parts. 



Corymbose-fiowereA Benzonia. Shrub 5 to 6 feet. 



Cult. See Psychotria, p. 599. for culture and propagation. 



CCXXVI. HIMATA'NTHUS (from I/uanov, himation, a gar- 

 ment, and avdoc, anthos, a flower ; the flowers are involucrated 

 by a large bractea before expansion). Willd. rel. ex Roem. et 

 Schuhesi syst. 5. p. 13. D. C. prod. 4. p. 621. 



LIN. SYST. Pentdndria, Monogynia. 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 Rubiacece, but the 

 stipulas and situation of the leaves, seeds, &c. are unknown. 



1 H. RI'GIDA (Hoffm. ex Willd. 1. c.). \ . S. Native of 

 Brazil, in the province of Para, where it is called Sucuba by the 

 natives. 



S^j^THimatanthus. Tree. 



Cult. For culture and propagation see Psychotria, p. 599. 



CCXXVII. SICKI'NGIA (evidently named after some per- 

 son of the name of Sicking, of whom we know nothing). Willd. 

 in nov. act. nat. cur. berol. 3. p. 445. and in Schrad. bot. journ. 

 1800. pt. 2. p. 291. B.C. prod. 4.j>. 621. 



LIN. SYST. Pentdndria, Monogynia. Calyx permanent, 5- 

 toothed. Corolla campanulate, 5-toothed: teeth oblong. Fila- 

 ments 5, inserted in the middle of the corolline tube. Anthers 

 linear, exserted. Stigma 1. Capsule woody, 2-valved. Seeds 

 winged. Trees, natives of Caraccas. Leaves opposite. Flowers 

 terminal, trichotomous, panicled, sweet-scented. This is a very 

 doubtful genus from the description given by Willdenow ; but 

 according to Richard it is related to Cinchonacece, in conse- 

 quence of the winged seeds ; but the stipulas are not mentioned, 

 and the leaves are said to be deeply and remotely toothed ; and 

 therefore it ought probably to be excluded from Rubiacece. 



1 S. ERYTHRO'XYLON (Willd. 1. c.) leaves oblong-rhomboid, 



