CALIFORNIA ACADEMY OF SCIENCES. 213 



densely leafy: branchlets short-jointed, tomentulose at the 

 joints: leaves glabrate, fleshy, obovate-spatulate, entire, ob- 

 tuse or retuse, 2 — 5 lines long: involucre firm-hyaline, red- 

 dish, with darker reticulate veins, 5 — 7 lines long, deeply 

 cleft into two entire, reniform lobes: wings reniform, entire, 

 unequal, one of them one-third, the other two-thirds the 

 length of the involucre: akene ovate-lanceolate, two lines 

 long, sharply triquetrous : perianth a half line long, persis- 

 tent. 



Cedros Island; first collected (in a small fragment, with 

 one involucre) by Dr. Veatch, long ago. It is the common- 

 est bush on all the lower and middle elevations of the island; 

 a hard, brittle-wooded evergreen, almost the only thing to 

 give a look of verdure to the sunburnt slopes at the dry 

 season of the year. 



Pterostegia galioides. 



Shrubby, a foot or two high, diffusely branched, the 

 branches slender, weak and reclining: foliage and branch- 

 lets minutely and sparingly pubescent: leaves linear-spatu- 

 late, a half inch long, hardly a line wide, acutish: involucre 

 thin-hyaline, white, with reddish reticulation, scarcely lobed 

 (the folds when spread presenting a merely obcordate out- 

 line of the whole), a half inch long: wings equal, erect, 

 bladdery-inflated, nearly an inch long : akene broadly lanceo- 

 late, three lines long: persistent sepals half a line. 



A weak under shrub, with the aspect of a Galium climbing 

 up among the branches of depressed masses of Rhus inlegri- 

 folia on the blufts of Cape San Quentin, Lower California. 

 This and the preceding species must be reckoned among the 

 most remarkable additions to Pacific American botany that 

 have been made for some years. There is nothing in the 

 aspect of either of them to suggest at first any close rela- 

 tionship with the little prostrate herb, P. drymarioides; nev- 

 ertheless, an examination of the involucres reveals no char- 

 acter by which either of them could be generically separated 



