Fallugia. ROSACEA. 175 



serrate toward the obtuse or rounded summit, more or, less silky above, densely 

 hoary-tomentose beneath, i to l. 1 , inches long, shortly petioled; veins prominent 

 beneath : flowers tomentose, on short slender pedicels : calyx-limb nearly 2 lines 

 long, with short teeth; tube becoming 4 to G lines long, exceeding the pedicel : tail 

 often 4 inches long. — Hook. ic. PI. t. 323; Hook. & Am. Bot. Beechey, 337. 



Var. glaber, Watson. Glabrous throughout, or the calyx somewhat appressed 

 pubescent: leaves dark green. — C. belulcefolius, Nutt. ; Hook. Ic. PL t. 322. C. 

 betuloides, Torr. k Gray, Fl. i. 427. 



In tlie Coast Ranges from Lake Co. (Torreij) to S. California, and in the Rocky Mountains 

 from Wyoming Territory to New Mexico ami Utah. The variety occurs in the mountains near 

 Santa Barbara (Xnltull) and San Diego, Cleveland, Palmer. 



10. COWANIA, Don. Cliff-Rose. 



Calyx persistent ; tube narrowly turbinate; limb 5-parted, imbricated. Petals 5, 

 obovate, spreading. Stamens numerous, in 2 rows, inserted with the petals at the 

 throat of the calyx-tube. Carpels 4 to 12, free and distinct, sessile, densely vil- 

 lous : style terminal, included: stigma terminal: ovule solitary, erect. Fruit a 

 coriaceous narrowly oblong striate akene, nearly.included in the dilated calyx tube. 

 caudate with the elongated plumose style. Seed linear, somewhat triangular : 

 radicle inferior. — Shrubs or small trees; leaves small, toothed or pinnatifid, coria- 

 ceous, glandular-dotted ; flowers showy, solitary, terminal. 



A genus of 3 species, confined to Mexico and the adjacent interior region northward. 



1. C. Mexicana, Don. A much-branched shrub, 1 to G feet high ; the trunk 

 \s~ with abundant shreddy light-colored bark : leaves approximate upon the short 

 branchlets, euneate-obovate in outline, 4 to 7 lines long, pinnately 3- 7-lobed, dark 

 green above, tomentose beneath, and the margin somewhat revolute: flowers yellow, 

 an inch or less in diameter, the calyx-tube attenuate into a short glandular-hairy 

 pedicel ; calyx lobes obtuse, tomentose, 2 lines long, equalling the tube : tail of the 

 akene at length 2 inches long or more. — Trans. Linn. Soc xiv. 574. t. 22: W 

 Bot. King Exp. 83. C. Stansburiana, Tcrrey, Stansbury IJep. 386, t. 3. 



"Mountains of California along the Viigen River" (Fremont, probably in Southern Nevada), 

 ami frequent eastward in tin- mountains to X. Utah and New Mexico, and southward to Central 

 Mexico. 'I'll'- wood i> light colored and very line grained. The other species are C. p 

 Don, of Northern Mexico, with toothed leaves and purplish flowi i 3, and I ■. Torr., with 



11. i white dowers and linear entire 1. i.. -. found "lily by Parry on the Rio Grande. 



11. FALLUGIA, Endlicher. 



Calyx persistent ; tube snort-hemispherical, villous within ; limb 5-parted, the 

 ovate lobes imbricated in the bud, with alternate Linear bractlcts. Petals 5, large 

 and rounded, spreading. Stamens numerous, inserted in a triple row upon the 

 margin of the calyx-tube. Carpels numerous, densely villous, inserted upon a small 

 conical receptacle: style terminal: stigma minute: ovules solitary, erect. Fruit 



a e. .viae us narrowly oblong akene, exserted, caudate with tie 1 plumose 



style. Seed linear: radiel.- inferior. — A low undersbrub ; leaves pinnately lobed, 

 margin revplute; stipules small; Bowers white, showy, solitary or panicled, termi- 

 nating slender elongated naked peduncles. 



1. P. paradoxa, Endlicher. Much branched with somewhat virgato slender 



I Ics, 2 or '■> feet high; epidermis white, persistent: leaves scattered or fas- 

 cicled, somewhat villous, rather tin. k, ■"> to 10 lines long, sessile, cuneate and atten- 

 uate int.' a linear base, pinnately 3 - 7-cleft above, tie 1 segments linen-, obtuse: 



