404 CALIFORNIA ACADEMY OF SCIENCES. 



164. Ekiophyllum st^echadifolium, Lag. var. depressum, 

 stems stout, a foot long or less, depressed, forming a low 

 hemispherical tuft: leaves broad and with about two pairs 

 of divaricate linear-oblong lobes. A plant in aspect ex- 

 tremely unlike the continental type of the species; but the 

 flowers and fruit present no characters. Frequent on cliffs 

 near the sea, on the north side only. 



165. Amblyopappus pusillus. Hook. &_Arn. Journ. Bot. 

 iii. 321. — Near the shores only. 



166. Achillea Millefolium, Linn. Sp. PI. 899. — Only 

 on the north side, and rather scarce. 



167. Artemisia Californica, Less. Linn^a. vi. 523. — 

 Frequent, but nowhere plentiful. 



168. Artemisia Ludoviciana, Nutt. ; Torr. & Gray, Fl. 

 ii. 420. — The common Calif ornian form; but only one tuft 

 of it seen on the island; that on the north side. 



169. Lepidospartum squamatum, Gray, Proc. Am. Acad, 

 xix. 50. — On a sandy tract in the interior. 



170. Senecio Douglasii, DC Prod. vi. 429. — Interior; 

 only two shrubs of it seen, but these large and beautiful. 



171. Cnicus LiLAOiNUS.i Near C. occidentalism but more 

 slender, much less tomentose, the leaves glabrate above: 

 heads smaller, the long herbaceous-acerose tips of the 

 bracts strongly incurved : corollas lilac-purple, short. — In- 

 terior of the island; infrequent. 



172. SiLYBUM Marianum, Gsertn. Fruct. et Sem. PI. ii. 

 378. — Abundant in the sandy beds of the broader canons, 

 both north and south, forming thickets impenetrable at the 

 growing season of the year. 



1 Mr. Parish has sent me from San Bernardino what must be the same 

 named by him as new, "(7. 7ieglectus; " but that name holds for an Old World 

 species. 



