RUBIACE^E. CXCII. KNOXIA. CXCIH. PSYLI.OCARPUS. 



629 



to the order Valerianece, terminal, sessile, or pedunculate, having 

 their branches becoming elongated and spike-formed, after 

 flowering. 



1 K. ZEYEA'NICA (Lin. spec. p. 151.) stem erect, glabrous, 

 nearly terete ; leaves lanceolate, almost sessile, glabrous ; 

 branches of cyme 1-3, very long, spicate, erect; tube of corolla 

 much longer than the calycine teetli ; throat of corolla bearded ; 

 stigma exserted. Native of Ceylon. Burm. fl. ind. 34. t. 13. 

 f. 2. Lam. ill. t. 59. f. 1. Corolla 6 lines long. Fruit easily 

 separated into 2 parts from the base. 



Ceylon Knoxia. Fl. July, Aug. Clt. 1826. PI. 1 foot. 



2 K. SUMATRE'NSIS (D. C. prod. 4. p. 569.) stem suffruti- 

 cose, erect, tetragonal, tomentose ; leaves lanceolate, remote, 

 villous, on short petioles ; corymbs terminal, compound ; tube 

 of corolla gibbous, short. Tj . S. Native of the East Indies, 

 among the Circars, and probably of Sumatra and Velore, as well 

 as of Nipaul and Kamaon. Spermacoce Sumatrensis, Retz, 

 obs. 4. p. 23. Roxb. fl. ind. 1. p. 372. Knoxia stncta, Gaertn. 

 fruct. 1. p. 122. t. 25. Knoxia corymbosa, Willd. spec. 1. p. 

 582. 1 but the fruit is not separable into 2 parts as in the follow- 

 ing. Knoxia mollis, R. Br. in Wall. cat. no. 820. Flowers 

 small, white. 



Sumatra Knoxia. Fl. July, Aug. Clt. 1818. Sh. 2 to 3 ft. 



3 K. TE'RES (D. C. 1. c.) stem suffruticose, erect, branched, 

 terete, villous ; leaves lanceolate, villous ; corymb terminal, 

 compound, with opposite branches, whicli at length become 

 spike-formed ; tube of corolla terete, straight, with the throat 

 very villous, and hiding the anthers ; style twice the length of 

 the corolla. Tj . S. Native of the East Indies, in woods at 

 Koorg. Spermacoce teres, Roxb. fl. ind. 1. p. 373. K. um- 

 bellata, Banks, herb, ex Roxb. 



Terete-stemmed Knoxia. F. June, Aug. Clt. 1820. Shrub 

 2 to 3 feet. 



4 K. EXSE'RTA (D. C. 1. c.) stem suffruticose, stiff, villous in 

 the younger parts; leaves lanceolate, petiolate, remote ; corymbs 

 terminal, compound ; stamens exserted ; style bifid, exserted ; 

 fruit ovate, hardly separable into 2 parts. J? . S. Native of 

 the East Indies, on the Circars, and of Nipaul. Spermacoce 

 exserta, Roxb. fl. ind. 1. p. 374. This is only, perhaps, a var. 

 of K. teres, according to Roxb. 



Exserled-slameneA Knoxia. Shrub 1 foot. 



5 K. GLA'BRA (D. C. 1 c.) stem suffruticose, terete, glabrous; 

 erect ; leaves linear-lanceolate, smooth ; corymbs axillary, com- 

 pound ; style pilose ; stigma clavate ; capsule globular, smooth. 



Pj . S. Native of Pulo-Penang. Habit almost of a grass, or 

 Bamboo. Spermac6ce glabra, Roxb. fl. ind. 1. p. 374. but 

 not of Mich. Spermacoce insularis, Spreng. syst. 1. p. 404. 

 Corolla campanulate, cream-coloured. 

 Glabrous Knoxia. Shrub 1 foot. 



6 K. t^vis (D. C. prod. 4. p. 570.) stem herbaceous, stiff, 

 terete, smooth ; leaves almost sessile, lanceolate, glabrous ; co- 

 rymbs terminal ; corolla funnel-shaped, with a bearded throat 

 and hidden anthers ; stigma bifid. $ . ex Roxb. ; Q. ex Lesch. 

 S. Native of Bengal. Spermacoce lae'vis, Roxb. fl. ind. 1. p. 

 374. Sperm. Roxburghiana, Schultes, mant. 3. p. 199. Sperm. 

 Roxburghii, Spreng. syst. 1. p. 404. Leaves 3 inches long, and 

 6 lines broad. Flowers large, pink. 



Smooth Knoxia. Fl. July, Aug. Clt. 1818. PI. 1 foot. 



7 K. HEYNEA'NA (D. C. prod. 4. p. 570.) stem obsoletely 

 tetragonal, rather roughish ; leaves lanceolate, ribbed, with sca- 

 brous margins, rough from dots on both surfaces ; corymbs 

 terminal, trichotomous. Native of the East Indies. Knoxia 

 species, Heyne. Spermacoce corymbosa, Roth, nov. spec. 

 p. 98. Room, et Schultes, syst. 3. p. 278. but not of Lin. 

 nor Burm. Very nearly allied to K. Sumatrensis. 



Heyne's Knoxia. PI. 1 foot. 



8 K. LINEA TA (D. C. 1. c.) downy; stem herbaceous, branched 

 a little, erect, villous; leaves ovate-lanceolate, with parallel veins; 

 bristles of stipulas pilose ; cymes corymbose, pedunculate, tri- 

 partite, axillary, and terminal; stamens inclosed. 0.? S. 

 Native of Java, among grass, about Rompien. Spermac6ce 

 lineata, Blum, bijdr. p. 947. but not of Roxb. 



Lined-]eaved Knoxia. PI. 1 foot. 



9 K. WIGHTIA'NA (Wall. cat. no. 6184.) plant glabrous ; stem 

 and branches slightly tetragonal ; leaves lanceolate, mucronate, 

 almost sessile ; corymbs terminal, compound, with spike-formed 

 branches. Ij . S. Native of the East Indies. Spermacoce, 

 Wight, herb. 



Wight's Knoxia. Shrub 2 to 3 feet. 



10 K. PLANTAGINEA (Wall. pi. rar. asiat. 1. t. 32.) stems 

 herbaceous, almost simple, rising in numbers from the root, 

 which is fusiform : radical leaves long-lanceolate, pilose ; cau- 

 line ones distant, narrower ; flowers terminal, sub-capitate : one 

 or two of the calycine teeth are elongated ; tube of corolla very 

 long. !. S. Native of the Burmese Empire, on the moun- 

 tains. Flowers blue. 



Plantain-like Knoxia. PI. 1 to 2 feet. 



Cult. For culture and propagation see Cr&sea, p. 627. 



CXCIII. PSYLLOCA'RPUS (from ^vXAoe, psyllos, a flea, 

 and Kaptrof, karpos, a fruit ; in allusion to the colour and shape 

 of the seeds). Mart. nov. gen. et spec. bras. 1. p. 44. t. 28. 

 D. C. prod. 4. p. 570. but not of Pohl. 



LIN. SYST. Tetrdndria, Monogy'nia. Calyx with a turbi- 

 nate tube, and an 8-toothed limb ; teeth subulate, 6 of which are 

 very short, and the other 2 opposite, linear, and elongated. Co- 

 rolla funnel-shaped, with a bearded throat, and a 4-lobed acut- 

 ish limb. Anthers 4, inclosed. Stigma emarginately 2-lobed. 

 Capsule crowned by the teeth of the calyx, compressed from the 

 back of the carpels, 2-celled, having the dissepiment parallel 

 with the valves ; cells 1 -seeded. Seeds oval, or orbicular, 

 winged, much compressed, fixed to the centre of the dissepi- 

 ment. Embryo straight, in the axis of thin albumen. Small 

 Brazilian shrubs, with twiggy, tetragonal branches. Leaves oppo- 

 site, and often fasciculately verticillate from clusters of the leaves 

 in the axils of the opposite ones. Stipulas joined with the peti- 

 oles, forming a sheath, ciliated with bristles. Flowers axillary 

 or terminal. 



1 P. ERICOIDES (Mart. 1. c. p. 45. t. 28. f. 1.) suffruticose, 

 almost simple at the bottom, glabrous; leaves 8-12, verticillate, 

 shorter than the internodes ; flowers terminal, sub-capitate, fj . 

 S. Native of Brazil, in the province of Minas Geraes, at Ban- 

 deinha, near Tejuco. Branches slender, twiggy. Corollas pale 

 blue. Calyx glabrous. 



Heath-like Psyllocarpus. Shrub 1 to 2 feet. 



2 P. LARICOIDES (Mart. 1. c. p. 45. t. 28. f. 2.) a much- 

 branched, glabrous shrub ; leaves opposite, approximate, seta- 

 ceous, clustered in the axils, and therefore falsely verticillate ; 

 flowers terminal, disposed in something like spikes. fj . S. 

 Native of Brazil, in the provinces of Minas Geraes and Bahia, 

 in dry mountainous places. Cham, et Schlecht. in Linnaia. 3. p. 

 357. P. laricinus, Spreng. cur. post. p. 39. Branches erectly 

 spreading. Corollas pale blue. Calyx glabrous. 



Var. ft, densijolius (Mart. 1. c.). fj . S. Native of Brazil, 

 on Serra de Itambe. 



Larch-like Psyllocarpus. Shrub 1-J- to 2 feet. 



3 P. Asi-ARAGOiDES (Mart. 1. c. p. 46.) a glabrous shrub, with 

 twiggy branches ; leaves disposed in verticillate fascicles, very 

 slender, and setaceous ; peduncles terminal, elongated, naked ; 

 flowers capitate. ^ . S. Native of Brazil, in the province of 

 Minas Geraes, near Piedade. Branches twiggy. Corollas 

 small, white. Calyx glabrous. 



