214 CALIFORNIA ACADEMY OF SCIENCES. 



were collected and are evidently a form of 31. linearifnlia. 

 Robust plants with strong fruiting heads of M. linearifolia 

 sometimes send up from near the base scapes bearing heads 

 with the pappus of M. macrocJiceta. The fruit of the J7. 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. =A. insularis, Greene. 



Arctostaphylos diversifolia, Parry. 



DoDECATHEON Hendersoni, Gray. 



Erythr^a Douglasii, Gray. 



GiLiA atractyloides, Steud. 



Gilia androsacea, Steud. 



Gilia Nevinii, Gray. 



Ellisia chrsanthemifolia, Benth. 



Phacelia distans, Benth. = P. scahrella, Greene. 

 Calyx lobes rarely incised. Leaves not as finely and 

 compouadly dissected as they are in the common forms. 



Phacelia viscida, Torr. 



Phacelia ramosissima, Dougl. 



