37 
synonymy of the trees native to the region in question are given, 
and new species of oak, hackberry, cherry, Leucothoé, St. Johns- 
wort, buckeye, azalea, and Dendvium are described. Contribu- 
tion No. 19, “The American species of Limnorchis (swamp- 
orchids) and Pi~eria, North of Mexico” by Dr. Rydberg is a 
discussion and critical arrangement of the orchids included in 
these genera and a description of several new species. Contri- 
bution No. 20, “ The Morphology and Physiology of the Seed- 
lings of Avisaema iriphyllum and A. Dracontium” by Miss R. J. 
Rennert includes the results of two years’ study of the germina- 
tion of the seeds of jack-in-the-pulpit, and green dragon. It is 
noted in this work that the seedling of the latter species does 
not appear above the surface of the soil until the second year of 
its growth. 
ACCESSIONS. 
MUSEUM AND HERBARIUM. 
6 specimens of Crassulaceae. (By exchange with Mr. L. Abrams ) 
36 specimens of Australian plants. (By exchange with the Royal Gardens, Kew. 
England. ) 
50 specimens ‘‘ Phycotheca Boreali-Americana,’’ Fasc. 18. (For the Columbia 
University Herbarium. 
3 specimens of Dryopteris from Vermont. (Given by Dr. T. E. fm 
15 specimens from Lake George, N. Y. (Given by Prof. J. F. Kemp.) 
26 specimens of Crataegus from Lake George, N. Y. oe . Mr. S. H. 
Burnham. ) 
I specimen of Aiccia from Louisiana. (By exchange with Mr. W. N. Clute.) 
6 specimens of recently described grasses. (Given by Mr, Geo. V. Nash.) 
4 specimens from Arizona. (Given by Dr. D. T. Mac Dougal. ) 
100 specimens ‘‘ Fungi Columbiani.’’ Fasc. 16. 
16 specimens ‘‘ Ohio Fungi Exsiccati.’’ Fasc. 
65 specimens of Florida y exchange an f. S. M. T 
57 specimens of fungi from California. (By cee with Mr. C, F. Baker. } 
560 specimens of Georgia plants. Collected by M arper. 
87 photographs of Georgia vegetati (Given by Mr. s M. Harper.) 
2 specimens from California. (Give Mr. 
S. B. Pari 
1 specimen of Ca/amintha from Maryland. Collected - Dr. A. Hollick. 
888 specimens of Rocky Mountain plants, collected by Mr. C. S. She 
