150 
herbarium and laboratory. Professor Underwood ; Mrs. Britton ; 
Dr. Howe. 
Taxonomy of Pteridophyta. — Study of the diagnostic ch ter 
and relationships of the principal families and genera. Field, 
herbarium, garden, conservatories and laboratory. Professor 
Underwood. 
Taxonomy of Spermatophyta. — Study of the principal families 
and genera. Field, herbarium, garden, conservatories and labora- 
tory. Dr. Britton; Dr. Small; Dr. Rydberg. 
Taxonomy of Gramincac,—Study of the diagnostic characters 
and relationships of the principal genera of grasses. Field, her- 
barium, garden and laboratory. Mr. Nash. 
General Palaeobotany. — Developmental history and arrange- 
ment of the fossil flora of some elected locality. Critical study 
of structure. Laboratory, field and museum. Dr. Hollick 
Developmental Taxonomy. — Fossil ancestors of some family of 
plants. Comparative study of form and structure. Laboratory 
and museum. Dr. Britton; Dr. Hollick. 
Lmbryology of Spermatophyta. — Comparative embryology of 
special groups. Special embryological problems. Laboratory. 
Professor Lloyd. 
Special Taxonomy. — Critical study of a family or genus of 
plants of not less than fifty species. The group may be chosen 
from the entire range of the vegetable world. Field, herbarium, 
laboratory, conservatories and garden. Directed, according to 
the group chosen, by Professor Underwood ; Dr. Howe ; Dr. Brit- 
ton; Dr. Small; Dr. Rydberg; Mr. Nash; Professor Burgess ; 
Mr. Earle; Mrs. Britton. 
Regional Botany. — Collection, determination and comparative 
study of the plants of some restricted area. Field, herbarium 
and laboratory. Professor Underwood ; Dr. Britton. 
Cretaceous Flora of Eastern North Auene. — Collection and 
determination of specimens of some station, with attention to 
stratigraphic relations. Field and laboratory. Dr. Hollick. 
Plant Geography. — Occurrence, characters, and arrangement 
of groups and formations. Relations of plant societies to one 
another, and to topographic, climatic and other conditions. 
