CONTENTS 



Pages 



1. Mosses of the G. Allan Hancock Expedition of 1934, Collected by Wm. 



R. Taylor, by William Campbell Steere. (Plate 1) 1- 14 



2. Myxophyceae of the G. Allan Hancock Expedition of 1934, Collected 



by Wm. R. Taylor, by Francis Drouet. (Plates 2-3) 15- 32 



3. Lichens of the G. Allan Hancock Expeditions of 1934, Collected by 



Wm. R. Taylor, by Carroll William Dodge 33- 46 



4. Plankton Diatoms of the Gulf of California Obtained by the G. Allan 

 Hancock Expedition of 1936, by W. E. Allen. (1 figure) 47- 60 



5. Plankton Diatoms of the Gulf of California Obtained by Allan Han- 

 cock Pacific Expedition of 1937, by E, E, Cupp and W. E. Allen. (1 



map and Plates 4-15) 61-100 



6. Phycomycetes Recovered from Soil Samples Collected by W. R. Taylor 

 on the Allan Hancock 1939 Expedition, by F. K. Sparrow, Jr. (Plates 

 16-17) 101-114 



7. Field Observations on the Algae of the Gulf of California, by Elmer 



Yale Dawson 1 1 5-120 



8. A Review of the Genus Rhodymenia with Descriptions of New 

 Species, by Elmer Yale Dawson, (Plates 18-30) 121-182 



9. Some Lichens from the American Tropics Collected by Wm. R. Taylor, 



by Joyce Hedrick 183-188 



10. The Marine Algae of the Gulf of California, by Elmer Yale Dawson. 



(Plates 31-77) 189-454 



Index 455-464 





