186 BOTANY. 



or acutish, attenuate or abruptly contracted at base, sparingly toothed, 

 mostly rather long petiolulate, glabrous, or, with the petioles, pubescent 

 when young: fruit 1' long, terete at base, widening into an oblong, obtuse 

 wing, calyx persistent. — Ash Meadows, Nevada, and also collected by Dr. 

 Bigelow on the Mexican Boundary Survey, at Devil's Run Canon, but not 

 mentioned in the report. A stem of twelve years' growth, 1£ inches in 

 diameter, has a smooth grayish brown bark." — Not having access to speci- 

 men, I have taken the above from Mr. "Watson in Cat. PI. "Wheeler, p. 15. 

 Species reduced by Dr. Cray in Syn. Fl. N. Am. p. 74, to a variety of the 

 following. — Plate XXII. 



Feaxinus pistacle folia, Torr., forma tomentosa. — Tomentose, leaflets 

 5, almost sessile, lanceolate, irregularly serrate, tomentose, especially be- 

 neath ; samara 1' long, seminiferous portion terete, 1" in diameter, 6" long, 

 equalling the narrow, lanceolate wing. Very variable in shape and hairi- 

 ness of the leaves, so much so that, in describing it a second time in the 

 Botany of Whipple's Expedition, Dr. Torrey changed the name from F. 

 velutina, as it appeared in Emory's report, to the present name — Ash Creek, 

 Arizona, at 5,000 feet altitude (302). Grows to be 20 feet high, with a 

 diameter of 18 inches. 



Forestiera* Neo-Mexicana, Cray, Proc. Amer. Acad, xii, 63. — 

 Thickish leaves, lanceolate to oblong-spatulate, acute or obtuse, usually 

 irregularly serrate ; (staminate flowers not seen,) pistillate flowers in fascicles 

 of from 4-7; immature drupe oval, blue and glaucous; young seed longi- 

 tudinally wrinkled. A much branching shrub, 8 feet high. — New Mexico 

 (108). ' 



APOCYNACE.&. 



Apocynum andros^emifolium, L. — Twin Lakes, Colorado (45). 

 Apocynum cannabinum, L — Deer Spring, Arizona (191). 



*Forbstiera, Poir. — Flowers dioecious or polygamous. Calyx, when present, small, unequally 5-6- 

 cleft. Corolla none, or rarely 2-3 petals. Stamens 2-4, with shortish filaments ; anthers ovate, sub- 

 extrorsely dehiscing. Ovary 2-celled ; style delicate, stigma thickened or 2-cleft ; ovules two in either 

 cell, suspended from the apex of the Cv.ll. Drupes ovoid or subglobose. Endocarp coriaceous or thin. 

 Seeds 1-2, pendulous ; testa membranaceous; albumen fleshy; cotyledons flat, short radicle superior. — 

 Smooth or hairy shrubs. Leaves opposite, entire or serrulate, deciduous, often fascicled in the axils. 

 Flowers small, very like those of Fraxinus, section Fraxinaster ; appearing before the leaves from the 

 nodes of the branches, fascicled or short racemose. — Bentham & Hooker. 



