Okd. 32. MESEMBRYANTHEMACEiE. 



1. MESEMBRYANTHEMUM, Linn. 



1. MESEMBRYANTHEMUM MUTABILE, H(IW. ? 



Hab. Abundant on rocks near salt water, Bay of San Francisco ; 

 creeping and forming large patches. — The species of this genus are so 

 difficult to determine in the dried state, that we are by no means cer- 

 tain this one is rightly named ; but this is the name adopted in the 

 Botany of Whipple's Expedition. It occurs also near San Diego, 

 together with an undetermined species allied to M. crystaUinum. 

 They can hardly be indigenous in California, and yet there is no 

 record of their having been introduced in any other part of the 

 world. 



Ord 33. CUCURBITACEJ5. 



1. ECHINOCYSTIS, Torr. & Gray. 



1. Echinoctstis (Megarhiza) fabacea, Naudin. 



Echynocystis fabacea, Naudin, in Ann. Sci. Nat. ser. 4, 16, p. 187; Benth & Hook 



Gen. PI. 1, p. 835. 

 E. muricata, Kellogg, in Proceed. Calif. Acad. 1, p. 57, olim 

 Marah muricatus, Kellogg, 1. c. p. 38. 

 Sicyos angulatm, Hook. Fl. Bor.-Am. 1, p. 220, pro parte. 

 S. Oreganus, Torr. & Gray, Fl. 1, p. 543. 



Hab. From Nisqually, Puget Sound, to San Francisco; and, in- 

 deed, throughout the length of California.— The root is shaped like a 



