3o6 THE ALPINE FLORA 



leaflets bear a few white hairs on the underside, while 

 Onobrychis is smooth on both. May-July. Rocky places 

 in Alps (8oo-i5oo m.). 



Jl. aristatus. Spinous plant, with long, prostrate 

 branches, forming broad, flat bushes; stems 4-12 in., 

 bearing on the upper portion hairy leaves, with 6-10 

 pairs of narrow leaflets, terminated by a spine; flowers 

 clear yellow and violet, hidden at the base of the leaves. 

 May-July. Sunny rocks and slopes of the southern Alps. 



Coronilla 



Eng. : Crown Vetch ; Fr. : Coronille ; Ger. : Kronwicke. 



Pretty, half-shrubby plants, but of no striking merit, 

 yet showy in their way, free growers and hardy, therefore 

 useful for rougher parts of rockwork. Jberica however 

 should be preferred to those mentioned below. The cha- 

 racteristics of the genus are a short, bell-shaped calyx, 

 with five teeth, the two upper ones joined along their 

 lower edges; the seed pod is narrow, articulate, and some- 

 what sickle-shaped; the flowers yellow or lilac. 



C. vaginalis (PI. XXXI). A prostrate plant with spread- 

 ing branches and leaves divided into four to six pairs of 

 leaflets; flowers yellow, 6-10 in number. May to July 

 on stony escarpments of the Alps and Jura. 



C. montana. Stems erect, hardly branched ; leaves bluish- 

 green, leaflets ovate or obovate; flowers clear yellow, 

 larger than vaginalis and in larger umbels, pods pendulous 

 with 3-4 joints. Jura. 



Hippocrepis 



7/. comosa* (PI. XXXI). Differs from the Coronillas in 

 its flat pod, which is deeply notched on the upper margin. 



