J 



376 Plants of San Francisco. [zoe 



" Wet uncultivated spot in a strawberry field beyond St. Mary's 

 College, in company with a remarkably abundant Platanthera 

 \_Hal?e)iaria leucostachys\. Summer of 1868. Mrs. Kingston, Dr. 

 Kellogg, Georgie and myself.— H. G. Bloomer." 



463. Fritillaria LiLiACEA Lindl. Bot. Reg. xx, t, 1663. Po- 



trero, Twin Peaks. February— March. " White Fritillaria." 



464. Fritillaria lanceolata Pursh, Fl. N. Am. i, 230. 



Bluffs of the seashore. Mission and South San Francisco hills 

 March— April. " Rice-Root." 



465. Calochortus LUTEUS Dougl. Bot. Reg. t. 1567. Potrero, 



South San Francisco. June— July. " Mariposa." " Butterfly Tu- 

 lip." 



466. Prosartes Hookeri Torr. Pac. R. Rep. iv, 144. Sun- 

 set Heights. April— May. " Drops-of-Gold." 



467. Trillium sessile L. var. giganteum H. & A. Bot. 

 Beech. 402. Sunset Heights, sides of a deep canon near Stanford 

 Heights, southern shore of Laguna de la Puerca, and ravine ter- 

 mmatinginit. February— April. "Wake-Robin." • 



The San Francisco 'form seems to have always pure white flowers. 



468. Zygadenus Fremonti (Torr. Pac. R. Rep. iv, 144). Presi- 

 dio and South San Francisco Hills-a low, few-flowered fo.m. 

 February —April. ' ' Zygadene. ' ' 



' TYPHACE^. 



469. Typha latifolia L. spec. 1377. Mountain Lake, Presidio, 



Lake Merced, and low wet places in Golden Gate Park. "Cat-tail 

 F lag. ' ' 



LEMNACE^. 



470. Lemna trisulca L. spec. 1376. '* Duckweed/' 



471- Lemna Valdiviana Phil. Linn^a, xxxiii, 2^0. -Duck- 

 weed." 



472. Lemna minor L. spec. 1376. " Duckweed." 

 473- Lemna gibba L. spec. 1377. " Duckweed." 



The species of Lemna are given on the authority of Bot. Cal. 

 Dr. Behr* records the absence of Lemna at the date of his earliest 



Zoe, ii, 4, 



