Fallugia. ROSACES. 175 



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

 hoary-tomentose beneath, J to li 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 6 lines long, exceeding the pedicel : tail 

 often 4 inches long. Hook. Ic. PI. t. 323 ; Hook. & Arn. Bot. Beechey, 337. 



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

 pubescent : leaves dark green. C. betukefoiius, Nutt. ; Hook. Ic. PI. t. 322. C. 

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



In the Coast Ranges from Lake Co. (Torrey) to S. California, and in the Eocky Mountains 

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

 Santa Barbara (Nuttall) 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 culyx-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 pinnatitid, 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 6 feet high ; the trunk 

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

 branchlets, cuneate-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; "Watson, 

 Bot. King Exp. 83. C. Stansburiana, Torrey, Stansbury Rep. 386, t. 3. 



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

 and frequent eastward in the mountains to N. Utah and New Mexico, and southward to Central 

 Mexico. The wood is light colored and very fine grained. The other species are C. plicata, 

 Don, of Northern Mexico, with toothed leaves and purplish flowers, and C. ericcefolia, Torr. , with 

 smaller white flowers and linear entire leaves, found only by Parry on the Rio Grande. 



11. PALLUGIA, Endlicher. 



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

 ovate lobes imbricated in the bud, with alternate linear bractlets. 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 coriaceous narrowly oblong akene, exserted, caudate with the elongated plumose 

 style. Seed linear: radicle inferior. A low undershrub ; leaves piunately lobed, 

 margin revolute ; stipules small ; flowers white, showy, solitary or panicled, termi- 

 nating slender elongated naked peduncles. 



1. F. paradoxa, Endlicher. Much branched with somewhat virgate slender 

 branches, 2 or 3 feet high ; epidermis white, persistent : leaves scattered or fas- 

 cicled, somewhat villous, rather thick, 3 to 10 lines long, sessile, cuneate and atten- 

 uate into a linear base, piunately 3 - 7-cleft above, the segments linear, obtuse : 



