Botanical Explorations of Thomas Nuttall. 115 



Arctostaphylos pumila Nutt. Around Monterey, flowering in March 

 and April. 



Xylococcus bicolor Nutt. = Arctostaphylos bicolor (Nutt.) Gray. This 

 was the type species of Nuttall's genus Xylococcus. 



CARDUACEAE. 



Artemisia foliosa Nutt. = Artemisia californica Less. Common around 

 Monterey. 



Stylocline gnaphaloides Nutt. Near Monterey. 



Collected at Santa Barbara. 



RANUNCULACEAE. 



Paeonia californica Nutt. Margins of bushy plains and in the moun 

 tain valleys in the vicinity of Santa Barbara, March and April. 



Lepidium lasiocarpum Nutt. Near Santa Barbara. 



Lepidium nitidum Nutt. Near Santa Barbara. 



Streptanthus arcuatus Nutt. Arabis arcuata (Nutt.) Gray. Shelving 

 rocks on high hills near Santa Barbara. 



Streptanthus repandus Nutt. This plant has remained unidentified 

 since the publication of Nuttall's original description, and no mention of 

 the plant is made by Dr. Watson in the Synoptical Flora. Nuttall's 

 original description is as follows : 



" Hirsute, particularly the lower part; leaves oblong-lanceolate, elon 

 gated, clasping, angularly toothed or repand above (flowers white) ; petals 

 about as long as the calyx. St. Barbara, Upper California. Stem simple, 

 about 2 feet high. Pedicels shorter than the calyx. Sepals and petals 

 linear." 



Thysaiiocarpus crenatus Nutt. This plant and the following are 

 usually treated as belonging to the same species, crenatus being made a 

 variety of laciniatus. Crenatus, however, by the rule of precedence is the 

 proper specific name. 



Thysaiiocarpus laciniatus Nutt. See remarks under the preceding. 



RESEDACEAE. 



Bllimia ruderalis Nutt. = Dipetalia subulata (Del. ) Kuntze. This plant 

 was the type of Nuttall's genus EUhnia. 



SAXIFRAGACEAE. 



Lithophragma cymbalaria Torr. & Gr. Shady woods near Santa 

 Barbara. 



RIBACEAE. 



Ribes villosum Nutt. This is commonly referred to Ribes divaricatum 

 Dougl., a species of the Northwest Coast. Nuttall found it common on 

 the plain near the village of Santa Barbara. 



