OF ARTS AND SCIENCES. 57 



Laphamia (?), sp. Foliage only of a shrubby composite, 2 i 

 high, much resembling L. insularis, but the pubescence different 

 Common over the summit of San Pedro Martin Island. ( LOG 



Perityle California, Benth. Abundant about Los Angeles 

 Bay and around the old French fort at Guaymas. (562.) 



Perityle deltoidea. Annual, low and slender, minutely [albes- 

 cent : leaves ovate-deltoid, coarsely and somewhat irregularly to. abed, 

 an inch long or less, exceeding tbe petioles: peduncles an inch long or 

 less ; heads 2 or 3 lines high, the bracts linear, acuminate : flowers 

 yellow; ligule linear-oblong, 2 lines long: style-appendages linear, 

 flattened, obtuse, not hispidulous: acbenes a line long, shortly ciliate, 

 the crown of very short bristles ; awn solitary, as long as the disk- 

 corolla, strongly hispidulous. — With the habit of P. microglossa. 

 Common in the shade on mountains and hillsides about Los Angeles 

 Bay. (568.) 



Perityle Palmeki. Of the P. Jcptoglossa group; a low peren- 

 nial (?) with herbaceous succulent brittle stems, gland ular-villous when 

 young, becoming finely pubescent or subglabrate below : leaves thin, 

 broadly ovate, acute, subcordate at base, very acutely lobed and 

 toothed, the petiole equalling or exceeding the blade (1 or 2 inches 

 long): peduncles H to 3 inches long; beads 4 or 5 lines long, the 

 bracts very narrow, acuminate: flowers golden yellow ; ray 1 lines 

 long : acbenes strongly ciliate, a line long, tbe prominent crown deeply 

 fimbriate, the hispidulous awn equalling the disk-corolla. — In crevices 

 of bare but shaded rocks ; Guaymas. (308.) 



Riddellia Cooperi, Gray. Mountains about Los Angeles Bay. 

 (538.) 



Palafoxia linearis, Lag. Sandy plains ; Los Angeles Bay. 

 (581.) 



Porophyllum gracile, Benth. Hillsides near Los Angeles 

 Bay. {b')b.) 



Porophylluii Seemanni, Schultz Bip.. var., with larger heads of 

 white flowers. "Mara villa"; used for headache. Crevices <>l ex- 

 posed rocks high in the mountains about Guaymas. (-"'.*.) 



POROPHYLLUM CRASSIFOLIUM. SuffYuticose, much branched and 

 compact: leaves somewhat fleshy, linear, attenuate al base, gland- 

 tipped and often setosely apiculate, \ to 1 inch loug or often less: 

 heads terminal on the short stout brauchleu : bracts broad, obtuse, 8 

 or 4 lines long, the yellowish flowers nearly twice longer: ach 

 lines long. — Apparently near P. tridentatum, Benth., from Magdalena 

 Bay, but the leaves are wholly entire and the flowers are much Ion 



