RHAMNE^E. VII. SEGERETIA. VIII. RHAMNUS. 



29 



4 S. OPPOSITIFOLIA (Brogn. mem. rhamn. p. 53.) brandies 

 round, climbing ; leaves and branches truly opposite, and with 

 short straight thorns, which grow out into branches ; leaves 

 ovate-lanceolate, serrulated, acuminated, somewhat retuse at the 

 base ; racemes axillary and terminal, short, villous, the whole 

 forming a pretty large brachiate panicle ; flowers fascicled. 



tj . w . G. Native of Nipaul at Cokurna in the valley. Zizy- 

 phus oppositifolia, Wall. fl. ind. 2. p. 370. Flowers greenish. 

 Opposite-leaved Segeretia. Fl. Aug. Sept. Shrub cl. 



5 S. AFFI'NIS ; leaves veiny, nearly opposite, ovate-oblong, 

 long-acuminated, rounded at the base, serrulated, smooth ; spikes 

 panicled, axillary, and terminal, shorter than the leaves. ij . S. 

 Native of Java. Rhamnus aft'inis, Blum, bijdr. 1141. 



Allied Segeretia. Shrub 8 feet. 



6 S. HAMOSA (Brogn. mem. rhamn. p. 53.) branches round, 

 climbing, opposite ; spines hooked ; leaves oblong, acuminated, 

 serrulated, villous at the origin of the nerves ; flowers fascicled, 

 disposed in short, panicled, villous, terminal racemes. Tj . w . G. 

 Native of Nipaul, at Chundrugiri, where it climbs over trees 

 and shrubs to a great extent. Zizyphus hamosa, Wall. fl. ind. 

 2. p. 369. Thorns slightly curved. Flowers greenish. 



//(Wcerf-thorned Segeretia. Fl. Aug. Shrub cl. 



7 S. TRI'GYNA ; climbing; branches round; leaves ovate, 

 acuminated, smooth, shining, serrulated, retuse at the base ; 

 flowers glomerate, disposed in spikes, forming a terminal panicle ; 

 petioles and branchlets pubescent ; styles 3. Ij . w . G. Native 

 of Nipaul, in mountain woods. Rhamnus trigynus and termi- 

 nalis, Hamilt. in D. Don, prod. fl. nep. p. 190. Shrub spinose. 



Trigynous Segeretia. Fl. Aug. Sept. Shrub cl. 



8 S. GUAYAQUILE'NSIS (Brogn. mem. rhamn. p. 53.) much 

 branched ; branches quadrangular ; spines scattered, awl-shaped ; 

 leaves elliptical, mucronate, hoary beneath ; flowers sessile, 

 scattered on the spikes ; stigmas 3. fj . S. Native on the 

 shore of the Pacific ocean, near Guayaquil. Rhamnus Guaya- 

 quilensis, H. B. et Kunth, nov. gen. amer. 7. p. 54. 



Guayaquil Segeretia. Shrub G feet. 



9 S. SENTICOSUS (Brogn. mem. rhamn. p. 53.) shrub very 

 spiny, almost leafless ; branches round ; spines decussately- 

 opposite, very long ; leaves ovate, somewhat quintuple, nerved ; 

 flowers rising above the base of the spines in glomerated fasci- 

 cles ; stigma trifid. J? . S. Native of Peru, in hot places, near 

 Contumasay. Colletia spicata, Willd. in Schult. syst. 5. p. 513. 

 Rhamnus senticosus, II. B. et Kunth, nov. gen. amer. 7. p. 54. 

 Fruit globose, 1-3-seeded. Flowers green. 



Thorny Segeretia. Shrub 6 feet. 



10 S. DECUSSA'TA; branches angular, elongated ; leaves ovate- 

 oblong, acute, quite entire, somewhat coriaceous, quite smooth ; 

 spines axillary, decussate, spreading, stiff; flowers disposed on 

 long spikes; spikes conjugate at the base of the spines, and 

 are 3-times longer than them. Tj . S. Native of Peru. Rham- 

 nus decussata, herb. Pav. This is probably the same as the 

 preceding species. 



Decussale-spmed Segeretia. Shrub 6 feet. 



* Unarmed. 



US. E'LEGANS (Brogn. mem. rhamn. p. 53.) lower leaves 

 truly opposite, ovate-oblong, acuminated, rounded at the base, 

 serrulated, smooth, shining ; panicles axillary and terminal, sim- 

 ple ; flowers glomerate, spiked ; stigmas 3, sessile. Tj . S. 

 Native of South America, but in what place is unknown. This 

 plant is probably spiny ? Rhamnus elegans, Kunth. 



Elegant Segeretia. Shrub. 



12 S. SPLE NDENS ; climbing ; leaves veiny, ovate, bluntly 

 acuminated, somewhat cordate at the base, crenulated ; cymes 

 axillary, bifid, shorter than the petioles. 1? . w . S. Native of 

 Java. Rhamnus splendens, Blum, bijdr. 1140. 



Splendid Segeretia. Shrub cl. 



13 S. LANCEOLA'TA; arborescent; leaves lanceolate, serrulated, 

 acute at both ends and pubescent beneath, fj . H. Native of 

 North America, in Tennessee, on the sides of hills. Rhamnus 

 lanceolatus, Pursh, fl. bor. amer. 1. p. 16G. Berries black. 



Zonceo/a/e-leaved Segeretia. Tree 16 feet. 



14 S. MICHA'UXII (Brogn. mem. rhamn. p. 53.) leaves oval, 

 serrulated ; flowers very minute, dioecious, disposed in spikes, 

 sessile; style trifid ; berry 3-seeded. Tj . H. Native of Caro- 

 lina and Florida, on the sea coast. Rhamnus minutiflbrus, 

 Michx. fl. bor. amer. 1. p. 154. Flowers white. 



l\hc/iaux's Segeretia. Shrub 6 feet. 



15 S. FILIFORMIS ; leaves ovate-lanceolate, serrulated, shining, 

 with the ribs beneath, as well as the petioles, pubescent ; flowers 

 hermaphrodite, disposed in filiform spikes, the whole forming a 

 panicle. Jj . S. Native of the East Indies. Rhamnus filiformis, 

 Roth. nov. spec. 153. 



Ftliform-afiiked Segeretia. Shrub. 



16 S. PARVIFLORA; leaves somewhat coriaceous, shining, ser- 

 rated, ovate, acuminated ; flowers disposed in loose spikes, the 

 whole forming a panicle. Jj . S. Native of the East Indies. 

 Rhamnus parviflorus, Klein, et Willd. in Schult. syst. 5. p. 294. 



Small-flowered Segeretia. Shrub. 



1 7 S. ? CORYMBOSA ; leaves coriaceous, elliptical, a little 

 serrated ; flowers corymbose, on peduncles, fj . S. Native of 

 the East Indies. Rhamnus corymbosus, Vahl. 



Corymbose-dowered. Segeretia. Shrub. 



18 S. LEPROSA ; climbing, adult branches spiny ; leaves veiny, 

 nearly opposite, ovate, somewhat cordate, obtuse, serrated, 

 smooth ; young ones densely furfuraceous ; pedicels 1- flowered, 

 axillary, solitary. Ij . w . S. Native of Java. Rhamnus leprosus, 

 Blum, bijdr. 1139. 



Leprous Segeretia. Shrub cl. 



Cult. The hardy kinds of this genus are well fitted for shrub- 

 beries ; they are increased by ripened cuttings or slips of the 

 roots, planted under a hand-glass, but they are generally pro- 

 pagated by laying the branches. For the culture and propaga- 

 tion of the stove and greenhouse species see Berchemia, p. 28. 



FIG. 5. 



VIII. RHA'MNUS (from the Celtic word ram, signifying a 

 tuft of branches, which the Greeks have changed to pa/nyoe, and 

 the Latins ioramus). Lam. diet. 4. p. 461. ill. t. 128. Gaert. 

 fruct. 2. p. 106. D. C. prod. 2. p. 23. Brogn. mem. rhamn. 

 p. 53. 



LIN. SYST. Pentdndria, Monogynia. Calyx urceolate, 4-5- 

 cleft (f. 5. C. b. A. a.). Petals wanting oremarginate (f. 5. C. c.). 

 Stamens bearing ovate 2-celled anthers (f. 5. A. d. B. b.). 

 Disk thin, covering the tube of the calyx (f. 5. B. d. A. e. C. e.~). 

 Ovary free, 3-4-celled (f. 5. A. h.f.). Styles 3-4 (f. 5. A. gf), 

 connected or free. Fruit baccate, containing 3-4-indehiscent nuts 

 (f. 5. A.j. B./.), rarely only 2 from abortion. Small trees or 

 shrubs, with alternate, stipulate, short, stalked, entire or toothed, 



