3^2 Plants of San Francisco. [zok 



293. MiCROSERis APHANTOCARPHA (Gray Proc. Am. Acad, vi, 

 552). Visitacion Valley. May. 



294. MiCROSERis BiGELOVii (Gray. Pac. R. R. Rep. iv, 113, 



t. 17). Common in the southern and western parts oi the city. 

 March — May. 



295. MiCROSERis DouGLASii (DC. vii, 85). Potrero, South 



San Francisco, Presidio. April— June. 



296. Stephanomeria virgata Benth. Hot. Sulph. 32. Golden 

 Gate Park, South San Francisco, Presidio. June— August. 



_ 297. Rafinesquia Californica Nutt. trans. Am'. Phil. Soc. 

 vii, 429. Golden Gate Park, Mission Hills, South San Francisco. 

 May— July. 



298. HypochcEris glabra L. spec. 1141. Common. March- 

 June. 



299. HypochcEris radkaia L. spec. 1 140. Presidio by roadsides, 

 March— August. 



300. Hypocharis apparently Achyrophorus amvandtcri 



Ph. Hillsides hear the bay shore between Visitacion Bay and South 

 San Francisco. 



3or. Troximon apargioides* Less. Linnc-ea, vi, 594. Near 

 the sea. May— July. 



302. Troximon humile (Benth. PI. Hartw. 320). Common, 

 flowermg most of the year. 



303. Troximon laciniatum (Nutt. Trans. Am. Phil. Soc. vii, 



432). Mission Hills. April— July. 



304. Troximon Chilense (Less. Syn. Comp. 131). Not so com- 

 mon m our hmits as T. humile. Various forms have received 

 specific names m Chili as Icsvigatus Sind pterocarpiis F. & M —forms 

 represented equally in California. Vars. cryptopkura and kymo- 



Pkura m their extremes appear to have been found only in Call- 

 lornia. 



305- Taraxacum ojficinak Weber Prim. PI. Hoist. 56. Becom- 

 ing abundant in city squares and lawns, flowering the trreater part 

 of the year. "Dandelion." ^ t. v 



In separating these species the relative length of l>eak and pappus is apparently 



of no value whatever. 



