I04 CALIFORNIA ACADEMY OF SCIENCES. [Proc. 30 Ser. 



A comparative study of these with drawings of similar parts 

 would be a most interesting illustration of insular variation. 



In the figures, the differences in the floral organs of this 

 species and H. argophy/la are given. It also differs in 

 foliage and inflorescence. 



Mrs. Trask reports this as rare and collected in the one 

 moist flat above the brackish stream. 



GERANIACE^. 



43. Erodium cicutarium L.' Her., ex Ait., Hort. Kew., 

 ed. I, Vol. II, p. 414. (Index Kewen.) 



Described first by Linn^us under Geranium, Sp. PL, 

 p. 680. 



This has been reported from all the islands, uncommon 

 on San Nicolas, collected on a moist slope. The specimen 

 is a long, slender branch; the gynophore measures 4 cm. 

 According to Mrs. Trask the flowers are bright red instead 

 of the common magenta hue. 



44. Malva pusilla Smith, Eng. Bot., T. 241. (Index 

 Kewen.) 



As M. borealis this was reported as common on all the 

 islands. On San Nicolas it grew in one locality, a flat 

 above the brackish stream. 



ONAGRACE.^. 



45. (Enothera viridescens Hook., Fl. Bor., Vol. I, p. 

 214. "Northwest Coast of America, Menzies." 



There are specimens of this in the Herbarium of the 

 Academy from San Miguel, Santa Rosa, and Santa Cruz 

 Islands. It grew on San Nicolas on the sands of the shore 

 and on the sand cliffs at 500 to 1000 feet elevation. 



This is one of the forms included under CE . cheiranthi- 

 folia in Bot. Calif., Vol. I, p. 225. It varies especially in 

 the size of the flowers, amount of pubescence, and the 



