132 PROCEEDINGS OF THE AMERICAN ACADEMY 



late, three to nine lines long : flowers few, in axillary naked very 

 loose heads, nearly white, two to four lines long, on slender pedicels 

 often half as long, at length reflexed : calyx very narrow, the slender 

 teetli much shorter than the corolla. — In the Sierra Nevada, from 

 the Yosemite Valley, at Clark's, to Sierra County, from several coliec- 

 lors. Of the T. gracilentum group, which is otherwise confined chiefly 

 to the Coast Ranges. 



Trifoliu:m Palmeri. A glabrous and diffuse annual, the stems 

 ascending, about a foot high or less : stipules elongated, narrowly 

 acuminate ; leaflets oblong to narrowly lanceolate, acute or acutish at 

 each end, serrulate, a half to an inch long : peduncles axillary : heads 

 naked, 10-20-flowered; flowers sessile, at length reHexed : calyx three 

 lines long, deeply cleft into narrow acuminate entire lobes : petals 

 purplish, scarcely exceeding the calyx : i)od 2-seeded. — Guadalupe 

 Island ; Dr. E. Palmer. 



Dalea Californica. Shrubby, with the leaves and younger 

 branches canescent with a fine appressed pubescence : glands mostly 

 obscure, but upon the peduncles sometimes prominent and prickle- 

 like : leaflets one or two pairs, linear-oblong, not two lines long, decur- 

 rent upon the short rhachis : flowers on short pedicels in a loose 

 raceme, purple, four lines long : calyx half as long, finely pubescent, 

 the ovate acute teeth shorter than the tube : ovules two. — Known as 

 yet only from scanty specimens recently collected by Dr. Parry in the 

 San Bernardino Mountains, California. It adds another to a group of 

 more or less woody or shrubby species, which may be separated as a 

 section Xylodalea, characterized by having the claws of the petals 

 adnate to the stamineal tube only at the very base, the flowers spread- 

 ing or reflexed, mostly in loose spikes or racemes, and the ovules in a 

 favf of the species four or six. It includes a dozen species, some 

 with calyx very pubescent and teeth mostly slender (Z). scopana 

 Gray ; D. frutescens, Gray ; D. Emoryi^ Gray ; D. arborescens, Torr. ; 

 D. pnhjadenia, Torr. ; D. amoena, Watson), others with the calyx spar- 

 ingly pubescent and broadly toothed (Z). Fremontii, Torr. ; D. Gali- 

 foritica, Watson ; D. Jolinsoni, Watson ; D. Kingii, Watson ; D. 

 Sc/iOttii, Torr.; and D. spinosa, Gray). The species D. arffi/reea, 

 D. Parryi, and D. leucostachys are intermediate between this section 

 and the true Daleas. The genus Asngrcea of Baillon, founded on 

 J), spinosa and characterized by the several ovules and sim[)le leaves, 

 can hardly be maintained, as D. Schottii likewise has simple leaves 

 but only two ovules, while in D. scoparia at least the ovules are 

 four. 



