CATALOGUE OF PLANTS COLLECTED IN SALTON SINK. 



This catalogue is founded on collections made by Dr. D. T. MacDougal and by the 

 author. A few additional references incorporate the short list of plants published by 

 J. B. Davy in Bulletin 140, Agricultural Experiment Station, University of California, 

 page 9. The numbers inclosed in parentheses are of the Parish collections; those num- 

 bered lower than 8200 were made between June 27 and July 4, 1912, those between that 

 number and 8400 between October S and 24 of the same year, those from 8400 to 8500 in 

 February 1913, and those above 8(500 from September 19 to 21, 1913. Stations without 

 numbers are given from the author's field notes. 



The MacDougal specimens are at the Desert Botanical Laboratory at Tucson. A 

 set of the Parish specimens is in the author's herbarium, and nearly complete sets have 

 been deposited in the herbaria of the Desert Botanical Laboratory of the University of 

 California, and in the Gray Herbarium of Harvard University. 



Synonyms are printed in italic, introduced plants in small capitals. 



LYCOPERDACEjE. 



Podaxon farlowii Massee. 



In the alluvial soils of the Sink, in places that have 

 been wet and are drying off. Mounds at the old 

 beach east of Holtville (S12S), Rockwood (8211), 

 Meloland, El Centro, Brawley, Mecca, Coachella 

 (L. A. Greata). 



This and the following species were determined by 

 Mr. Lloyd. 



Phellorina macrosperma Lloj 1 1 



A single specimen in alluvium which had been re- 

 cently flooded, on the mesa at Mecca (S212). 



An African genus, of which, according to Mr. Lloyd, 

 there have been but three previous collections in 

 the United States. 



POLYPORACEjE. 



Polyporus corruscans Fries. 



In the fracture of a dead and fallen willow, Figtree 



John Spring (8605). 

 Determined by Mr. Lloyd. 



.ECIDACE.E. 



Negredo scirpi (Cast.) Arth. Uromyccs scirj>i Burr. 



On the leaves and stems of Scirpus paludosus, New 

 River near Rockwood (8217). 



Abundant at this station, but not seen elsewhere. It 

 has been collected on Hcirpus pacificus at several 

 stations in California. Determined by Dr. Arthur. 



CHROOCOCCACEiE. 



Chroococcus sp. 



On a dripping iron water-pipe, Thermal (8201). 



OSCILLATORIACE.E. 



Oscillatoria formosa Bory. 



On mud, Alamo River at Holtville (8201). 



Phormidium luridum (Kuetz.) Gomont. 

 With the last species (8204a). 



Phormidium tenue (Mengh.) Gomont. 



On a dripping iron water-pipe, Thermal (8201a). 



Schizothrix lardacea (Ces.) Gomont. 

 With the last species (8201b). 

 104 



NOSTOCACEjE. 



Nostoc coeruleum Lyngbye. 



In the small stream running from the railway water- 

 works at Mecca (8460). 



BACIXLARIDACE.E. 



Amphora sp. 



In the water of Salton Sea (MacDougal, 190S). 



Gomphronema sp. 



With the last species. 



VOLVOCACEjE. 



Chlamydomonas sp. 



Developed in water taken from Salton Sea at Traver- 

 tine Terraces, Feb. S, 1913, by Dr. MacDougal, 

 and used in cultural experiments at Tucson. 



CCELASTRACE.E. 



Ankistrodesmus falcatus (Corda.) Ralfs. 

 With the last species. 



The four last preceding species were determined by 

 Dr. T. E. Hazen. 



ULOTHRICACEyE. 



Conferva utriculosa Kuetz. (?) 



In a small stream from an artesian well at Mecca 

 (8402). 



CEDOGONIACEiE. 



(Edogonium sp. 



In the water of Salton Sea (MacDougal, 1908). 

 Determined by Dr. Hazen. 



CLADOPHORACE^E. 



Cladophora crispata (Roth.) Kuetz. 



In small streams from artesian wells at Mecca (8402, 

 8405, S406, S407). Determined by Mr. F. S. 

 Collins. 



Rhizoclonium hieroglyphicum Kuetz. var. macromeres 

 Wittrock. 

 In the water of Salton Sea (MacDougal, 190S). 

 Determined by Dr. Hazen. A variety of the same 

 species was collected in a small pool at Thermal 

 (8202). 



