150 KEY AND FLORA 



b. C. foliolo'sa Hook & Arn. Stems generally in a bunch, white- 

 woolly. Leaves short but numerous, lowest entire, upper floral 

 leaves cleft, with the tips dilated, yellowish or red. This is common 

 only on dry hills of the Coast Mountains. 



c. C. latifolia Hook & Arn. Stems leafy, 1 to several from the 

 root, viscid-pubescent. Leaves short and broad, the upper ones 3-5- 

 lobed, tinged with red. Calyx lobes longer than the tube of the 

 corolla. Near the coast, from Monterey County northward. 



VI. ORTHOCAR'PUS, Owl's Clover 



Low annual herbs, similar to Castilleia in having spikes of 

 flowers with the cleft bracts and calyx divisions colored. 

 Calyx short, tubular, 4-cleft. Corolla tubular, with the 

 upper lip hardly longer than the lower, small in comparison 

 with the lower, which is inflated and in several species has 3 

 round sacs. 



* Bracts with tips colored like a corolla. 



a. 0. purpuras'cens Benth. ESCOBITA. Simple and erect, or 

 branched at the base, hairy. Spike dense, oblong, the lobed bracts 

 and the calyx divisions crimson. Upper lip of the corolla densely 

 bearded with crimson hairs, hooked at the apex, the lower lip with 3 

 very small sacs. Stigma large, globose, densely covered with purple 

 hairs. Very common in spring. Widely distributed. 



b. 0. densiflo'rus Benth. OWL'S-CLOVER. This is similar to 

 the above, except that the upper lip of the corolla is straight and the 

 lobes of the bracts and of the calyx white and crimson ; the leaves are 

 soft, pubescent, with few lobes, or entire at the base. Along the 

 coast. 



** Bracts not colored like a corolla. 



c. 0. erian'thus Benth. Slender, with many branches ; stems and 

 bracts dark red. Corolla deep yellow, the upper lip slender, pointed, 

 dark-purple, the sacs on the lower lip large, round, and deep, the tube 

 very slender. Monterey County northward. 



d. 0. versi'color Greene. POP-CORN FLOWER. Similar to the 

 last, but the Jiowers are pure white, fading pinkish. In one variety 

 the flowers are rose-color from the first. This species is very fra- 

 grant. Around San Francisco. 



e. 0. lithospermoi / des Benth. Stems rather stout, generally 

 simple, 1-1 ft. high, very leafy. Flowers in a dense spike. Calyx 



