Betula microphylla var. fontinalis (Sargent Bot Gaz 31 

 239 as species). 



Betula microphylla var. occidcntalis (Hooker, Fl. Bor 

 Am. 2 155 as species). 



The true Betula microphylla occurs in Montana and inter- 

 ^ades occur in Montana and Utah with the var. fontinalis. 

 1?. Piperi Britton is an intergrade between the species and the 

 var. occidcntalis. 



Salix Jaliscana n. sp. 



Allied to S. laevigata; leaves elliptical-obovate to oblong- 

 lanceolate, 2-4 inches long, dark and dull and prominently 

 yellow-veined above, very glaucous and slightly pubescent 

 below, minutely and finely and closely serrulate and revolute, 

 only the narrower leaves acute or shortly-acuminate, petioles 

 glandular and 2-3 lines long and stout; stipules none; season's 

 twigs yellow and woolly, older ones dark-reddish-brown and 

 smooth ; catkins (male not know^n) very dense, broadly linear, 

 1-2 inches long, on long and leafy peduncles on which the up- 

 per leaves are longer than the catkins and obovate and nar- 

 rowed, but truncate below (which is the same in all the 

 leaves) ; pods rhomboidal-obovate, 1 line long, smooth and 

 corrugated with age, but probably deciduously woolly when 

 young; stipe nearly as long as the pod and very woolly; 

 scales oval, about H line long and very persistgnt-woolly ; 

 styles evident, about as long as the very broad stigmas; a 

 rather large sized bush. Ferreria Jalisco, Mexico, Mav 28, 

 1892. 



Zygadenus venenosus var. ambiguus n, var. 

 Inflorescence panicled. This is the Californian form west 

 r.f the Sierras, though connecting forms occur at Reno, Ne- 

 vada. 



Zygadenus intermedins Rydeberg. Rydberg's description 

 of this species has these features: All leaves with distinct 

 sheaths, petals long-clawed, oblong, 6-8 mm. long, easily dis- 

 tinguished from Z. paniculatus by the obtuse petals, distinct 

 claws, and sub-cordate base of petals. Fart of his type is my 

 No. 2091 from Farmington. Utah. These specimens have no 

 distinct sheaths to anv of the leaves except the basal ones, the 

 petals are short-clawed, ovate to rhomboidal, and some at 

 least are acute. 4 mm. long, they are not easily distinguished 

 from Z. paniculatus by any character given by Rydbcr; 

 being typical Z. venenosus they are easily distinguis'-"' 



ished froi 



