214 CALIFORNIA ACADEMY OF SCIENCES. 



were collected and are evidently a for.m of M. linearifulia. 

 Robust plants with strong fruiting heads of M. linearifolia 

 sometimes send up from near the base scapes bearing heads 

 with the pappus of 31. macrochceta. The fruit of the Ji. ma- 

 crochceta form seems always to be undeveloped. 



MiCROSERis LiNDLEYi, Gray. 

 Malacothrix incana, Torr. & Gray. 

 Malacothrix saxatilis, Torr. & Gray. 



HiERACIUM ARGUTUM, Nutt. 



Troximon grandiflorum, Gray. 



SONCHUS oleraceus, L. 



SoNCHUS asper, Fuchs. 



Arctostaphylos tomentosa, Dougl. 



Arctostaphylos pungens, HBK. = J. insularis, Greene. 



Arctostaphylos diversifolia, Parry. 



Dodecatheon Hendersoni, Gray. 



Erythrjea Douglasii, Gray. 



GiLiA atractyloides, Steud. 



Gilia androsacea, Steud. 



Gilia Nevinii, Gray. 



Ellisia chrsanthemifolia, Benth. 



Phacelia distans, Benth. = F. scabrella, Greene. 

 Calyx lobes rarely incised. Leaves not as finely and 

 compoundly dissected as they are in the common forms. 



Phacelia viscida, Torr. 



Phacelia ramosissima, Dougl. 



