Ord 59. CONVOLVULACE^. 



1. CALYSTEGIA, R. Br. 



1. Calystegia sepium, R. Br. 



Hab. Valley of the Sacramento, and near San Francisco, Cali- 

 fornia ; apparently indigenous. 



2. Calystegia Soldanella, R. Br. 



Hab. Sandy beaches, Puget Sound, and near Gray's Harbor, Wash- 

 ington Territory : southward along the coast of California. 



2. C R E S S A, Linn. 

 1. Cressa Cretica, Linn., Var. Truxillensis, Choisy, in DC. 



Hab. Base of hills on the Lower Sacramento, California ; its most 

 northern station hitherto recorded. 



3. CU SCUTA, Tourn. 



[The MSS. of the species of Guscuta of this collection had not been 

 prepared. The species are comprised in Dr. Engelmann's monograph 

 of the genus, in the Transactions of the St. Louis Academy ot 

 Science.] 



