Botanical Explorations of Thomas Nuttall. 119 



KANUNCULACEAE. 



Clematis lasiantha Nutt. Near the seacoast 



Clematis parviflora ^utt=Clematis jMuciJfora Nutt. Locality the same 

 as the hist. Tlie rv in parviflora is a tj'pographical error for uc, as indi- 

 cated in the supplement of Torrey and Gray's Flora (p. 657), and the 

 name used by subsequent authois has therefore been C. pauciflora Nutt. 



BRASSICACEAE. 



Streptanthus heteiophyllua Nutt. Bushy hills near San Diego. 



CRASSULACKAE. 



Echeveria lanceolata '^wii. = Cotyledon lanceolala (Nutt.) Bentli. <k 

 Hook. 



Echeveria pulverulenta Nutt. = Cotyledon pulverulenta (Nutt.) Baker. 

 Flowering in May. 



Sedum edule Nutt. = Cotyledon edulb (Nutt.) Brewer. Edges of rocks 

 and ravines. 



CAPPARIDACEAE. 



Isomeris arborea Nutt. This is the type of Nuttall's genus Isomeris. 



VICIACEAE. 



Hosackia cytisoides rubescens Torr. & Gr. Hosackia cytisoides Benth. 

 is now referred to Lotus benlhami Greene, but Nuttall's Hosackia cytisoides 

 rubescens seems not to have been critically identified in recent years. 

 Collected near San Diego. 



Lathyrus strictus Nutt.=L«%rit.s restitiis Nutt. Bushy places around 

 San Diego. 



Lupinus truncatus Nutt. This species was based on two specimens, 

 one collected by Douglas at San Francisco, the other by Nuttall at San 

 Diego. 



RUTACEAE. 



Pitavia dumosa Nutt. = Cneoridium dumosum (Nutt.) Hook. f. 



RHAMNACEAE. 



Ceanothus verrucosus Nutt. Low hills near the coast. 



CACTACEAE. 



Cereus californicus Torr. & Gr. = Opuntia califondca (Torr. & Gr.). 

 Cereus californicm Torr. & Gr. Fl. 1, 555, 1840. Opuntia serpentina Engehn. 

 Am. Jour. Sci., ser. 2, 14, 338, 1852. The original description of this 

 plant in Torrey and Gray's Flora is as follows: " Erect and shrubby, 

 ■with numerous clusters of long and short spines ; the branches somewhat 



