564 Rydberg : Rocky Mountain flora 



black-hairy ; teeth nearly 2 mm. long and subulate ; pod fully 

 2 cm. long and 3 mm. wide, sessile, linear, straight, glabrous. 



This species is nearest related to H. canipestris and H. hylo- 

 philns ; but differs from both in the peculiarities of the terminal 

 leaflets. It has broader and less hairy leaflets than the former 

 and narrower and longer than the latter. It grows on hillsides. 



Colorado: Estes Park, 1895, G. E. Ostcrhoiit (ty^Q) ; also in 

 I goo; Gray-Back Mining Camps, 1900, Rydberg & Vreeland 

 5g6o. 



Ceanothus subsericeus sp. nov. 



A small shrub, apparently not spiny ; bark of the stems gray 

 or brown ; of the twigs light gray and finely pubescent ; leaves 

 short-petioled ; petioles 3-6 mm. long ; blades elliptic or elliptic- 

 lanceolate, acute at both ends, 2-3 cm. long, more or less gland- 

 ular-denticulate, 3-ribbed, sparingly strigose above, grayish-silky 

 beneath ; umbels axillary and terminal ; peduncles 3- 10 mm. 

 long ; pedicels 5-10 mm.; calyx about 3 mm. in diameter ; sepals 

 semi-orbicular ; petals white, broadly spatulate, clawed, 1-5 mm. 

 long ; fruit dark brown, about 4 mm. in diameter, slightly 3-lobed 

 above. 



This species is intermediate between C. ovalis pubesccns and C. 

 Fendleri. In habit it resembles most the latter, but differs in the 

 denticulate leaves and in not being spiny. From the former in 

 the smaller size, the silky, instead of villous, pubescence and the 

 principally axillary umbels. C. subsericeus grows in the foothills 

 at an altitude of about 1,800 m. 



Colorado : Larimer Co., 1895, /. //. dnven (type); "Colo- 

 rado," 1874, G. C. Woolson. 



Sphaeralcea Crandallii sp. nov. 



Perennial, about 6 dm. high ; stem simple, sparingly stellate ; 

 petioles 3-4 dm. long ; leaf-blades cordate in outline, 5-lobed, 

 about 5 cm. in diameter ; lobes lanceolate, coarsely toothed ; in- 

 florescence mostly terminal ; pedicels and calyx sparingly and 

 finely stellate ; bractlets subulate, nearly equaling the lanceolate 

 long-attenuate sepals; petals white or nearly so, about 2.5 cm. 

 long, cuneate and slightly emarginate ; fruit not known. 



This resembles a small 5. rivularis, but differs in the long 

 bractlets and the lanceolate sepals. It grows at an altitude of 

 about 2,000 m. 



Colorado: Steamboat Springs, 1894, Craiidall gj. 



