560 PROCEEDINGS OP THE AMERICAN ACADEMY. 



ica of young branches leaves and calyx ochiaceo-ferrugineoas, pul- 

 verulent: leaves rhombic-ovate, shallowly sinuate-angled, 6 to 8 cm. long, 

 1 to 5.5 cm. broad: inflorescence closely flowered. — Van Heurck & 

 Miill. Arg. in \'an lli'invk. Obs. luU. — Panama, Chagres, Feb., 

 .M irch, L850 (A. Fendler, no. 254). 



S. ochraceo-ferrugineum. Stem- 1.5 to S in. high, armed with 

 stout broad-based deltoid prickles: young branches leaves and calyces 

 ochraceo-ferrugineous, densely velutinous fcomentose rarely a little gland- 

 ular: leaves oblong-ovate, Bhallowly Binuate-angled or lobed, 7 to 16 cm. 

 long, 4.5 to 12 cm. broad, paler and more tomentose beneath than 

 above: inflorescence loosely many-flowered: calyx in anthesis 8 or 10 

 mm. long, deeply 5-parted into deltoid-lanceolate acuminate lobes: 

 corolla 3 cm. broad: anthers slender, Bubequal, 6 or 7 mm. long: berries 

 glabrous, 1 cm. or more in diameter. — S. obtusifolium, Benth. PI. 

 llartw. 20, not 1115K. S. torvnm, var. vrhrnrm-i'm-iiijiiiriini, Duual, 

 1. c. 200. — Guanajuato, Guanajuato, 1837 (Hartweg, no. 204), 1880, 

 1883 (J. Duges): Tamaulipas, San Luis Potosi to Tampico, Dec., 

 1878 to Feb., 1879 (Edw. Palmer, no. 639£) ; Vera Ceuz, old fields 

 and recently cleared grounds, Wartenburg, near Tantoyuca, 1858 

 (JSrvendberg, nos. 285, 485). 



S. DIVER8IFOUUM, Schleeht. Sparingly armed: branches petioles 

 and inflorescences cinereous Btellate-tomentulose : leaves oblong-ovate, 

 bluntly acuminate, with rounded bases, olive-green and stellate-scabrous 

 above, cinereous-tomentulose or pulverulent beneath, 7 to 20 cm. long, 1 

 to 12 cm. broad, subentire or slightly undulate, rarely Bhallowly sinuate: 

 inflorescence subaxillary, simple or branched, becoming G to 9 cm. lung. 

 extremely floriferous, the pedicels after anthesis mostly strongly reflexed 

 or drooping. — Linnaea, six. 297 ; 1 hinal, 1. c 262. — ( Originally described 

 from Papantla, Vera Cruz. The following are referred lure; .Mexico, 

 without locality (Coulter, no. 1245): San Luia Potosi, bills, Las 

 Canoas,Aug. 21, 1891 (C. G. Pringle, no. 3901, doubtfully referred 

 here) : Vera Cruz, Valley of Cordova, Dec. 26, 1865 or 1866 I Boitr- 

 geau, no. 1608); Orizaba (Botteri)\ near Motzorongo, Feb. 22, 1894 

 ( E. W. Nelson, no. 1 19) : Oaxaca, Paso de Canoa, Tuxtepec, alt. 150 

 m., Aug. 2S, ls'j.3 (Cutizaf/i, no. 188, L. ('. Smith no. 669). 



= = Branches unarmed. 



S. Hayesii. A small tree: bhe young branches finely but densely 

 invested with short ochraceo-cinereoos stellate hairs : upper leaves gemi- 

 nate and unequal, ovate to ovate-obloiig, acuminate, unequal and sub- 



