RUBIACEjE. II. UNCARIA. III. ADINA. 



471 



9 U. INSI'GNIS (D. C. prod. 4. p. 348.) branches acutely te- 

 tragonal ; leaves on short petioles, having a narrow cordate 

 recess at the base, roundish- elliptic, short-acuminated, shining 

 above, reticulately veined beneath, and canescent from down 

 between the veins ; peduncles axillary, solitary, recurved, com- 

 pressed ; flowers on long pedicels. fj . w . S. Native of the 

 island of Luzon, one of the Philippines. Calyx tubular, 5-cleft. 

 Corolla large, clothed with silky tomentum inside. Style ex- 

 serted. Ovarium containing 2 bodies, perhaps seeds or placentas. 



Famous Uncaria. Shrub cl. 



10 U. ELLI'PTICA (R. Br. in Wall. cat. no. 6104.) branches 

 rather tetragonal; leaves elliptic, acuminated, tapering at the 

 base, on longish petioles, glabrous except on the nerves be- 

 neath while young ; peduncles axillary, solitary, opposite, shorter 

 than the leaves, usually not longer than the petioles : the lower- 

 most ones converted into sterile hooked spines. fj.^.S. Native 

 of Pulo-Penang. Nauclea ovalif61ia, Roxb. herb. Corolla 

 downy outside. 



Elliptic-leaved Uncaria. Shrub cl. 



11 U. CIRRHIFLORA (Roxb. fl. ind. 2. p. 120.) leaves ovate- 

 oblong, smooth ; stipulas bifid ; peduncles recurved, floriferous 

 at the apex. T? . w . S. Native of the Malay Islands. The 

 rest unknown. 



Tendril-flowered Uncaria. Shrub cl. 



12 U. GLABRA TA (D. C. prod. 4. p. 348.) leaves oblong-lan- 

 ceolate, acuminated, glabrous as well as the branches, which are 

 tetragonal ; stipulas bifid ; peduncles solitary, spreading, arti- 

 culated above the middle, at length hooked. Jj . w . S. Native 

 of Java, on the mountains of Seribu. Nauclea glabrata, Blum, 

 bijdr. p. 1012. Allied to U, cirr/iifldra, Roxb. ex Blume. 



Glabrous Uncaria. Shrub cl. 



13 U. PEDICELLA'TA (Roxb. fl. ind. 2. p. 119.) leaves oval, 

 acutish, rounded or subcordate at the base, shining above, reti- 

 culated beneath and clothed with rusty tomentum, as well as 

 the branches, which are tetragonal ; stipulas bifid ; peduncles 

 axillary, solitary, bearing each a single head of flowers, spread- 

 ing, articulated above the middle ; flowers on long pedicels. 

 Jj . w . S. Native of the Molucca islands, and probably of Pulo- 

 Penang and Java. Nauclea pedicellata, Blum, bijdr. p. 1012. 

 Flowers forming round heads of about an inch and a half in 

 diameter, covered with rusty tomentum. . 



/Wice//afe-flowered Uncaria. Shrub cl. 



14 U. SPECIOSA (Wall. cat. no. 6106.) branches tetragonal, 

 clothed with brown villi, as well as the under side of the leaves 

 and nerves on the upper side, petioles, peduncles, and calyxes ; 

 leaves pilose on both surfaces, ovate-elliptic, cordate at the base, 

 and short-acuminated at the apex, on very short petioles ; pe- 

 duncles axillary, solitary, opposite. I? . w . S. Native of Pulo- 

 Penang and Singapore. Nauclea cordifolia, herb. Findl. Heads 

 of flowers large. Calyx and fruit clothed with brown villi, and 

 the corolla with white. Flowers pedicellate. Lower peduncles 

 converted into spinose recurved hooks. 



Showy Uncaria. Shrub cl. 



15 U. FERRUGI'NEA (D. C. prod. 4. p. 348.) leaves ovate, 

 acuminated, rounded at the base, shining above, reticulated be- 

 neath and clothed with rusty tomentum as well as the brandies, 

 which are tetragonal; stipulas bipartite; peduncles solitary, 

 spreading, articulated in the middle. ^ . w . S. Native of 

 Java, on the mountains. Nauclea ferruginea, Blum, bijdr. p. 

 1013. Very like U. pedicellata, but differs in the flowers and 

 the capsules being 3 times smaller. 



Rusty Uncaria. Shrub cl. 



16 U. FE'RREA (D. C. 1. c.) leaves on very short petioles, 

 ovate-oblong, acuminated, rounded and subcordate at the base, 

 pubescent above, densely tomentose beneath, as well as on the 

 branches, which are obscurely tetragonal ; stipulas bifid ; pe- 



duncles solitary, spreading, articulated in the middle. Tj . v _,. S. 

 Native of Java, on the mountains of Seribu. Nauclea ferrea, 

 Blum, bijdr. p. 1014. 



Iron Uncaria. Shrub cl. 



17 U. SESSILIFRU'CTUS (Roxb. fl. ind. 2. p. 130.) leaves ellip- 

 tic, smooth, acuminated ; peduncles axillary, bearing from 1-3 

 heads of flowers : also terminal, bearing many heads of flowers ; 

 capsules sessile. Tj . w . G. Native of the East Indies, in the 

 forests of Chittagong. The shrub supports itself by strong 

 spiral axillary hooks. The terminal peduncles form themselves 

 into a kind of racemose panicle. 



Sessile-fruited Uncaria. Clt. 1829. Shrub cl. 



18 U. AFRICA V NA; leaves ovate-lanceolate, acuminated, on 

 short petioles ; flowers disposed in a loose globular head ; heads 

 terminal ; calyx and corolla villous on the outside ; hooks axil- 

 lary, twisted, or reflexed. TZ . w . S. Native of Sierra Leone, on 

 the banks of rivulets. Corolla greenish yellow. 



African Uncaria. Shrub 4 to 6 feet, cl. 



19 U. GUIANE'NSIS (Gmel. syst. 1. p. 370.) branchlets tetra- 

 gonal ; leaves petiolate, ovate, acute, glabrous ; stipulas solitary, 

 on both sides, triangular ; peduncles solitary, bracteolate in the 

 middle, axillary, opposite, and terminal : lower ones sterile and 

 converted into flat, hooked spines, fj . w . S. Native of Guiana, 

 on the banks of rivers and rivulets. Ourouparia Guianensis, 

 Aubl. guian. 1. p. 177. t. 68. Nauclea aculeata, Lam. ill. t. 

 153. f. 2. Poir. diet. 4. p. 436. Hayn. term. bot. t. 29. f. 5. 

 U. aculeata, Willd. in Ust. del. opusc. 2. p. 200. The flowers 

 in the same head are variable in colour, yellow, white, green, 

 red, rufous, and blackish : they are very fragrant. 



Guiana Uncaria. Shrub cl. 



20 U. TOMENTOSA (D. C. prod. 4. p. 349.) arboreous ; 

 branches somewhat quadrangular, downy ; leaves ovate-elliptic, 

 acute, clothed with fine pubescent tomentum beneath, and shin- 

 ing above with the nerves downy ; stipulas broad ovate ; pe- 

 duncles villous, disposed in a terminal panicle : and the lower- 

 most ones converted into axillary hooks. Tj . w . S. Native of 

 New Granada, on the banks of the river Magdalena. near Naers. 

 Nauclea tornentosa, Willd. in Rcem. et Schultes, syst. 5. p. 221. 

 N. aculeata, H. B. et Kunth, nov. gen. amer. 3. p. 282. Corolla 

 clothed with silky pubescence on the outside. Peduncles also 

 axillary, bearing 1-3 stalked heads. 



Tomentose Uncaria. Tree. 



Cult. See Nauclea, p. 469. for culture and propagation. 



III. ADTNA (from a^ti'oe, adinos, crowded ; in reference to 

 the flowers being disposed in heads). Salisb. par. lond. t. 115. 

 Juss. mem. mus. 6. p. 403. D. C.prod. 4. p. 349. Nauclea 

 species of some. 



LIN. SYST. Pentandria, Monogynia. Calyx with an oblong 

 tube, and a campanulate 5-parted, permanent limb (f. 84. a.). 

 Corolla funnel-shaped, 5-lobed (f. 84. b. c.) ; throat glabrous ; 

 lobes valvate in aestivation. Anthers almost sessile (f. 84. e.~), at 

 the recesses between the lobes, inclosed. Style exserted (f'. 84. 

 d.) ; stigma capitate-ovate. Capsule membranous, ob-pyramidal, 

 2-celled ; valves 4 (f. 84. g.), dehiscing from theapex ; central axis 

 permanent, bearing the calyx at the apex. Seeds 2-4 in each 

 cell, oblong, marginate (f. 84. h.~), inserted near the top of the 

 cell, hanging by spongy funicles. Glabrous shrubs, natives of 

 China. Branches terete, opposite. Stipulas twin, on both sides, 

 joined at the base, yellowish, lanceolate. Leaves lanceolate, gla- 

 brous. Peduncles axillary, rarely terminal, solitary. Heads of 

 flowers globose, without any involucra, yellowish. Flowers ses- 

 sile, crowded, intermixed with paleae. Receptacle pilose. This 

 genus is intermediate between Nauclea and Cephalanthus, and 

 probably not distinct from the first. 



