RHAMNACER, g | 197 
_ Texas, New Mexico, Cauirornia.—Norta Mexico, Zacatecas (Coulter, 1); Sourn 
Mexico, Jalisco (Lay & Collie), Regla (Ehrenberg), Oaxaca (Galeotti, 7159), Zimapan 
(Coulter, 2). Hb. Kew. | oo 
4, Karwinskia (?) mollis, Schl. in Linnea, xv. p. 461. ° 
Norta Mexico, region of San Luis Potosi, 6000 to 8000 feet (Parry & Palmer, 117); 
SoutH Mexico, Barranca de Santa Maria (Schiede). Hb. Kew. 
5. Karwinskia sessilifolia, Schl. in Linnea, xv. p. 461. 
. SoutH Mexico, Hacienda de San Gabriel (Schiede). 
6. Karwinskia (?) subcordata, Schl. in Linnea, xv. p. 462. 
Sourn Mexico, between Ismiquilpan and Zimapan (Schiede). 
7. Karwinskia, sp. 
Norta Mexico, Sonora Alta (Coulter, 3). Hb. Kew. 
Tribe RHAMNEA. 
5. RHAMNUS. 
Rhamnus, Linn. Gen. Plant. n. 265 (excl. Zizypho et Paliuro); Benth. et Hook. Gen. Plant. i. 
- p. 877. 
A genus of about sixty shrubby and arboreous species, widely dispersed, but none 
recorded from South Africa, Australia, or Pacific Islands. | 
1. Rhamnus biniflorus, DC. Prodr. ii. p. 26; Calques des Dess. Fl. Mex. 171. 
MEXICO. 
9. Rhamuus californicus, Esch. Bot. Calif. i. p. 101. 
Rhamnus oleifolius, Hook. Fl. Bor.-Am. i. p. 1238, t. 44. 
Rhamnus laurifolius, Nutt. in Torr. & Gr. Fl. N. Am. i. p. 260. 
Rhamnus tomentellus, Benth. Pl. Hartw. p. 303. 
Frangula californica, A. Gray, Gen. Il. ui. t. 178. | 
Texas, New Mexico, Canirornia.—Norta Mexico, Sierra Madre (Seemann, 2159), 
Sonora (Schott) ; Sourn Muxtco, Vera Cruz (Virlet @ Aoust). Hb. Kew. 
3. Rhamnus caprezefolius, Schl. in Linnea, xv. p. 464. 
SourH Mexico, Malpays de Naulingo (Schiede), Puente de Dios (Ehrenberg). 
4, Rhamnus humboldtianus, Rem. et Schultz, Syst. Veg. v. p. 295; i. B.K. 
Nov. Gen. et Sp. vii. t. 608. 
Sour Mexico, near Puente de la Madre de Dios, between Totonilco el Grande and 
Actopan (Humboldt & Bonpland). | 
