56 Sierra Club Publications. 



brown, having the outline of a pair of scales. This was seen in 

 Kings River Canon. 



Asclepias Mexicana Cav. Stems rather slender, 3-6 ft. high. 

 Leaves in whorls of 3-6, linear, sessile, smooth, 3-6 in. long. 

 Umbels clustered to form a corymb, densely flowered, on pedun- 

 cles longer than the petioles. Flowers rather small, greenish- 

 white or tinged with purple. Hoods broadly ovate, shorter than 

 the beak-like, incurved horn. Seed-pods slender, tapering to the 

 top. Kings River Canon. 



Qomphocarpus cordifolius Benth. Smooth, with ascending 

 stems 2-3 ft. high. Leaves clasping by a heart-shaped base, 

 opposite or sometimes in threes. Umbels 1-5 with the flowers on 

 slender pedicels. Corolla dark reddish-purple. Hoods tipped 

 with a point where the open edges come together, but without 

 horns. Pods smooth, erect, on pedicels that are deflexed. Kings 

 River Canon. 



CONVOLVULACE/E. Morning-Glory Family. 



Convolvulus Berryi. Morning-Glory. Stems usually ly- 

 ing on the ground or supported by the other plants, clothed with 

 dense, white wool. Leaves broadly triangular, mucronate at 

 each angle, the two lateral often sharply lobed, 1-2 in. long, 

 the largest leaves becoming more than 2 in. wide at base. Flowers 

 axillary, solitary on long peduncles, frequently curved. Bracts 

 close under the cal3rx, similar to the leaves but smaller. Calj'x 

 with obtuse divisions shorter than the bracts. Corolla white, 

 tinged with pink, funnel-form, i^ in. across. Millwood and near 

 Converse Basin. 



Cuscuta subinclusa Dur. & Hilg. Dodder. Parasites with 

 yellow stems, no leaves, and small white flowers in bunches, 

 climbing and living upon other plants. Corolla urn-shaped, y% in. 

 long, with the lobes shorter than the tube. Pod conical, capped 

 with the withered corolla, usually containing one seed. Bubbs 

 Creek, on various plants. 



SOLAN ACE/E. Nightshade Family. 



KEV TO THE GENERA. 



Corolla wheel-shaped ; anthers longer than the filaments, uniting 

 to form a cone ; fruit a berry. . Solauum, Nightshade. 



Corolla tubular, with a spreading border ; stamens not united ; 

 fruit a pod splitting from the top. . Nicotiana, Tobacco. 



Solanutn Xanti Gray. Half shrubby, generalh^ with many 



