298 Cotiiributio)is to Western Botany. [zoe 



oblong, 4 lines longer than keel, expanded at base like A. Beckwithii., 

 sides reflexed 20° or less, groove very shallow and acute, scarcely 

 narrower at base, not enlarged or narrowed on the outside toward 

 the base; banner acutely notched at apex, ^ line deep; wings 

 obliquely obovate or lanceolate, ascending 45° so as to expose the 

 bottom of keel, concave to keel, entire or obscurely toothed at 

 rounded apex; keel incurved 100° or more, blunt, tipped with yel- 

 low. Schell Creek Mountains, Nevada, July, 1891. 



Astragalus Kentrophyta Gray. It is hard to believe that a 

 subalpine plant in the Wasatch can be the same as one growing on 

 the driest slopes of valleys in the arid regions, but so far I can see 

 no distinguishing characters. The floral characters of the arid plant 

 are these : calyx bent like Hedeoma; banner arched less than 90° 

 abruptly and with a hump below the bend also, cucullate, sides very 

 concave and little reflexed; sulcus very shallow; banner contracted 

 about a line below the tip, so that the general outline is oblong, lip 

 abruptly reflexed or not at all, deeply notched, a little broader at tip 

 than below, finely striate veined with purple; wings connivent, ob- 

 long-ovate, obtuse or barely acute, i^^ lines longer than keel, as- 

 cending; keel purple tipped, sharp, and much incurved. Very dry 

 knolls in valleys of Eastern Nevada, fruit in July. 



In my last "Notes" in Zoe I inadvertently transposed the terms 

 dorsal and ventral in describing my species of Astragalus. 



Cercocarpus ledifolius Nutt. In a former communication in 

 Zoe I gave some general details of the relation of the type to the 

 variety i7itricatns Jones. Having now examined minutely all my 

 material from all sources and also that in the Shaw Botanic Gardens 

 (the Engelmann collection), my conclusions are that there is but one 

 good variety of C. ledifolius and that one is the var. intricatns, which 

 does not deserve higher rank. C- parvifoliiis Nutt. var. breviflorus 

 Jones. I reduce from the C. breviflorus Gray, PI. Wright 2 p. 54. 

 It is clearly a form of the more robust species. C. fothergilloides 

 HBK. is quite variable, and some forms are hard to separate from 

 C. parvifoliiis. I studied this latter carefully in the Sierra Mojada 

 in May, 1892 (Mexico). 



The following are some notes on C. ledifolius and its variety. The 

 species sheds its leaves late in the second season. 



July 2, Muncy, Nev. Leaves lanceolate to linear, margins revolute, 

 nearly glabrous, bark dark gray. 



