1888.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM 531 



736. Baeria uliginosa Gray. 



This plant differs somewhat from most of the forms of this species 

 seen. The receptacle is obtusely conical and puberulent, the involucral 

 bracts narrower and longer, and the stem 1 to 2 feet high. The leaves 

 are mostly eutire towards the base, with the apex cat into long linear 

 lobes. Our plant most resembles 466 of Kellogg & Harford, which was 

 distributed as B. Fremontii, but referred by Dr. Gray in his Herbarium 

 to B. uliginosa, and yet from his notes he considered it a peculiar form. 



665. Cheenactis lanosa D. C. 



Grows very plentifully about San Quentin, but not before reported 

 so far south. 



644. Senecio Lyoni Gray. 



Before only reported from San Clemente Island by Nevin & Lyon 

 (1885). The present plant differs somewhat from the type. It is taller 

 and more branching, the wool in the axils not quite so abundant, the 

 pedicels longer (sometimes 2 inches), aud somewhat spreading. 



659. Senecio peninsularis u. sp. 



Two feet high, much branched, glabrous ; leaves bipiuuate, segments 

 linear, and with a broad auriculate base; the heads in a corymbose 

 cyme; the longest pedicels 2 to 3 inches long; heads large (6 lines 

 high), rays conspicuous and dark yellow; involucre somewhat open, 

 with tapering black tips, hairy when young. Akeues with a short dense 

 white pubescence. Closely related to 8. Lyoni, but differs in the broad 

 auriculate base of the leaves; no wool in the axils; rays larger aud 

 darker colored. 



606. Senecio sylvaticus L. 

 691. Trixis angustifolia D. C. 



The typical form is rarely collected so near the coast. 

 615, 625, 626. Microseris linearifolia Gray. 



This species is quite variable here, but the smaller forms are more 

 common. 



607. Sonchus tenerrimus L. 



Supposed to have been introduced from Southern Europe, but rarely 

 met with, and only reported by Nuttall and by Orcutt in 1884. 

 639. Philibertia linearis (Jray, var. heterophylla Gray. 

 650. Gilia (Siphonella) laxa n. sp. 



Annual, sweet-scented, 4 to 9 inches high, slender and weak, either 

 simple or ranch branched ; leaves divided into three to five linear seg- 

 ments (5 to 10 lines long), upper ones often alternate; calyx 2 hues 

 long, cleft almost to the base; corolla lobes but 2 lines long; capsule 

 1 line long, four seeds in each cell. The characters of the section 

 Siphonella must be somewhat enlarged to admit this species, as its rela- 

 tionships are certainly here, notwithstanding these differences. It is 

 nearest G. floribunda, but differs in being an annual, in its weak and 

 straggling habit, more simple inflorescence, and smaller flowers. 



