RUBIACE.E. LXX. OPHIORHIZA. LXXI. ARGOSTEMMA. 



523 



niinal, corymbose, f; . S. Native of the East Indies, at Chep- 

 padong. 



Reddish Snake-root. Shrub 1 foot. 



20 O. HISPI'DULA (Wall. cat. no. 6234.) stem and petioles 

 downy : leaves elliptic, tapering to both ends ; peduncles ter- 

 minal, downy, corymbose, dichotomously branched ; capsules 

 downy. T? . S. Native of the East Indies, at Tavoy. 



Hispid Snake-root. Shrub |- to -| foot. 



21 O. HETEROPHY'LLA (Jack, mal. misc. 2. no. 7. p. 85. Wall, 

 in Roxb. fl. ind. 2. p. 547.) stem erect, tomentose ; leaves 

 roundish-ovate, those opposite each other very unequal in size ; 

 cymes small, terminal, Jj . S. Native of Sumatra, in the interior 

 of the island. Leaves with a bluntish acumen, smooth, pale, and 

 whitish beneath. Capsules compressed, obcordate. 



Variable-leaved Snake-root. PI. to 1 foot. 



22 O. ACUMINA'TA (D. C. prod. 4. p. 416.) stem suffruticose, 

 clothed with rufous velvety down above, as well as the petioles ; 

 leaves lanceolate, acuminated, glabrous, velvety on the nerves 

 beneath ; stipulas broad at the base, and awned by a bristle at 

 the apex ; cymes pedunculate, of 5 velvety branches. T? . S. 

 Native of the island of Luzon, at Sorzogon. O. subumbellata, 

 Bartl. in herb. Haenke. Perhaps the same as O. subumbellata, 

 Forst. 



Acuminated-leaved Snake-root. Shrub. 



23 O. RICHARDIA'NA (Gaud, in Freyc. voy. p. 473. t. 97.) 

 plant suffruticose, quite glabrous ; leaves oblong, much acumi- 

 nated at both ends, petiolate, with smooth margins ; corymbs 

 terminal, on short peduncles, trifid or quadrifid ; tube of corolla 

 short ; calycine teeth very short. J? . S. Native of the Mo- 

 luccas. 



Richard's Snake-root. Shrub -J to 1 foot. 



24 O. PERPUSI'LLA (Blum. herb, ex D. C. prod. 4. p. 417.) 

 stem erect, dwarf, simple ; leaves elliptic, glabrous ; flower ter- 

 minal, solitary, nutant, on a short pedicel ; corolla funnel-shaped, 

 glabrous; calycine teeth obtuse. 11. S. Native of Java. Herb 

 hardly an inch long. Fruit unknown. 



Smallest Snake-root. PI. 1 inch. 



25 O. HARRISONII (Heyne, ex Wall. cat. no. 6236.) stem, 

 petioles, peduncles, and nerves of leaves on the under side 

 downy ; leaves ovate or roundish-ovate, acutish, glabrous and 

 green above, and pale beneath ; peduncles terminal, corymbose, 

 and dichotomously branched at the apex. If. . S. Native of 

 the East Indies. Root creeping much. 



Harrison's Snake-root. PI. i to 1 foot. 



26 O. ? GEMINA'TA (Wall. cat. no. 6237.) stem, petioles, pe- 

 duncles, and nerves on the under surface of the leaves, downy ; 

 leaves large, obovate-oblong, tapering much at the base, and 

 running down the petioles, and acute at the apex, glabrous and 

 green above, but pale or reddish beneath ; peduncles long, ter- 

 minal, racemose. f; S. Native of the East Indies, in Silhet 

 and Gualpara. Dentella ? geminata, Herb. Ham. Root creep- 

 ing. Stem dwarf. Racemes numerous, crowded, secund, alter- 

 nate, short, recurved, on each peduncle. Perhaps a proper 

 genus. 



Twin Snake-root. PI. \ to 1 foot. 



f A doubtful species. 



27 O. ? SUBUMBELLA'TA (Forst. prod. no. 66.) stem shrubby; 

 leaves lanceolate, acute ; umbels axillary, trifid. fj . S. Native 

 of the island of Otahiti. 



Subumbellate-fiowered Snake-root. Shrub. 



Cult, The species of Snake-root will grow in a mixture of 

 loam, sand, and peat ; and they may either be increased by cut- 

 tings under a hand-glass in heat, or by seeds. 



LXXI. ARGOSTE'MMA (from apyog, argos, white, and 



ia, stemma, a crown ; in reference to the terminal racemes 

 or umbels of snow white flowers). Wall, in Roxb. fl. ind. 2. p. 

 324. Blum. mss. ex D. C. prod. 4. p. 417. Pomangium, Reinw. 

 ex Blum. 



LIN. SYST. Tri-Pentdndria, Monogynia. Calyx with a short 

 obconical tube, and a 3-4-5-cleft limb : lobes acute, valvate in 

 aestivation. Corolla rotate, spreading, with a 3-5, rarely with a 

 3-4-parted limb. Stamens alternating with the lobes of the 

 corolla. Anthers large, exserted, cohering at the apex. Style 

 perforating a fleshy disk ; stigma globose. Capsule crowned by 

 the calyx and an opercular disk, 2-celled, dehiscing in a ra- 

 diant manner at the apex ; receptacles convex, adnate to the dis- 

 sepiment. Seeds numerous, angular.- Herbs, for the most part 

 hairy from short down. Leaves quite entire, opposite, one 

 usually smaller than the other, rarely verticillate. Stipulas foli- 

 aceous, ovate, solitary on both sides. Peduncles terminal, and 

 almost axillary, bearing fascicled umbels of flowers at the apex, 

 very rarely only one flower. Flowers white. The species of 

 this genus have the habit of those of Ophiorhiza. 



1 A. sARMENio'stTM (Wall, in Roxb. fl. ind. 2. p. 324.) plant 

 rather villous, creeping at the base, and stoloniferous, the upper 

 part of the stem erect ; leaves ovate, obtuse, almost sessile, 

 downy above, and villous on the nerves beneath, in two approxi- 

 mate pairs ; flowers 3 or 4-parted, disposed in a terminal umbel 

 or corymb-formed raceme. \i . S. Native of the East Indies, 

 on rocks on the hills at Schukragiri, near Rujmahul ; and of 

 Nipaul, on the mountains to the northward of the valley on the 

 route to Gosaingsthan. Stem and leaves rather pubescent. 

 Flowers snow white. Corolla 5 times longer than the calyx. 

 Leaves at end of stem. 



Sarmentose Argostemma. PI. -| foot. 



2 A. VERTICILLA'TUM (Wall. 1. c. p. 325.) plant erect, downy, 

 and tufted ; leaves 4 in a whorl, linear-lanceolate, rather falcate ; 

 peduncles 2-3, rarely solitary, bearing a few umbellate flowers 

 each ; flowers 4-5-parted. i/ . S. Native of Nipaul, on rocks 

 at Moreko in the valley. Root fleshy, and almost tuberous. 

 Stems furnished with a pair or two of lanceolate connate scales. 

 Leaves ciliated. Flowers snow white, rather smaller than those 

 of the preceding species. The mouth of the corolla is marked 

 with 10 minute tubercles, alternately receiving the basis of the 

 filaments. Ovarium smooth. Wall. pi. rar. asiat. 2. p. 80. t. 185. 



Whorled-]eaved Argostemma. PI. 4 inches. 



3 A. ROSTRA'TUM (Wall. 1. c. p. 326.) plant erect, smooth; 

 leaves in 2-4 approximate pairs, narrow-lanceolate, acuminated, 

 petiolate ; stipulas ovate, recurved, permanent ; umbels pedun- 

 culate, terminal, many flowered ; segments of corolla and tube of 

 the anthers acuminated. Tf. . S. Native of the East Indies, on 

 the Pundua mountains near Silhet. Stem furnished with several 

 remote pairs of lanceolate-ciliated stipulas : the upper ones be- 

 coming enlarged and foliaeeous. Pedicels an inch long, clavate, 

 a little ventricose above the middle. Corollas white, nearly an 

 inch in diameter. Habit of Trientdlis Europce'a. 



Beaked-znthered Argostemma. PL to foot. 



4 A. PI'CTUM (Wall. 1. c. p. 327.) plant glabrous ; stem short ; 

 leaves smooth, ovate, subcordate, painted with reticulated white 

 nerves, on very short petioles ; umbels terminal, pedunculate, 

 many flowered ; flowers pentandrous. 2/ . S. Native of Pulo- 

 Penang, growing on rocks near the water-fall. Leaves only 2, 

 or in 2 remote pairs, slightly ciliated. Peduncle simple, or 

 having 2 opposite branches, each bearing a round umbel of many 

 small flowers. Unripe berry as large as a coriander seed, 

 smooth. 



Painted-\eaved Argostemma. PI. 1 to 2 inches. 



5 A. BORRAGI'NEUM (Blum. mss. ex D. C. prod. 4. p. 417.) 

 stem creeping at the base, but erect above, and scabrous at the 

 apex ; leaves elliptic, acute at both ends, petiolate, with a few 



3x2 



