1838.] PROCEEDINGS OP UNITED STATES NATIONAL MUSEUM. 527 



LIST OF PLANTS COLLECTED BY DR. EDWARD PALMER IN LOWER 



CALIFORNIA IN 1889. 



BY DR. GEORGE VASEY AND JOSEPH N. ROSE. 



Dr. Edward Palmer was employe! by the Department of Agriculture 

 to luake botanical investigations and collections in California and ad- 

 jacent parts. In January, 1880, he began his collections at San Quentin, 

 in Lower California; next he proceeded to Lagoon Head; then to Cedros 

 Island and San Benito Island, and lastly off the west coast to Guada- 

 lupe Islands. 



The specimens were all carefully examined and determined, so far 

 as possible, at the herbarium in the Agricultural Department, and 

 finally corrected by a study of the types in the Gray herbarium. Dr. 

 Sereno Watson very kindly and willingly looked over our specimens 

 and gave very valuable suggestions as to where certain puzzling forms 

 should go. 



1. PLANTS COLLECTED AT SAN QUENTIN. 



During January and the first part of February last, Dr. Palmer was 

 engaged in collecting in the region about San Quentin Bay. Although 

 some of our best collectors have visited this region, yet none probably 

 have collected so largely aud thoroughly. While a number of new 

 species were found, the collection is also especially valuable in the 

 number of old but rare species, aud in extending the range southward 

 of other more common ones. 



In this paper each species is preceded by the number under which it 

 is to be distributed. Those numbers under 700 were collected in Jan- 

 uary, while 700 to 7-40 were collected in February. 



600. Platystemon Californicus Beuth. 



680. Meconopsis heterophylla Benth. 



739. Eschscholtzia Californica Cham. 



707. E. peninsularis Greene. 



611. Draba cuneifolia, var. brevipes Watson. 



734. Cheiranthus asper C. & S. 



725. Sisymbrium canescens Nutt. 



731. S. reflexum Nutt. 



723. Tropidocarpum gracile Hook. 



Very rare and only two specimens collected. This extends its pub- 

 lished range considerably southward. 



671. Capsella divaricata Warp. 

 621, 673. Lepidium nitidum Nutt. 

 728. Frankenia Palmeri Watson. 



732. Tissa macrotheca Britton. (Lepigonum macrothecum, F. & M.) 



This extends the range of this species south of that given by Mr. 

 Britton in his recent paper on the genus. 



