29 
The severe frost of October 1st, which did such serious damage 
in the ornamental borders in the Garden also injured one of the 
rarest mosses. This plant, Baxbaunua aphylla, grows along the 
moist banks of the Bronx where old logs and stumps have been 
allowed to decay. Here it has been under observation for three 
years. The first year it was found buried in the snow and the 
colony showed fifteen capsules, which were gathered on the first 
day of March. The second year it was less abundant, while 
during the present year thirty capsules were counted in September 
he dry autumn probably retarded their development, and they 
failed to reach maturity before the frosts came. Nearly all were 
frozen and the spore cases broke off from the thick stalks im- 
mediately after the first frosts in October. A few remaining sur- 
vived for varying periods until only two were seen in the early 
part of December. One had turned a dark red color as if ripe. 
Both vanished later. 
hus be seen that the development of the mosses is 
greatly dependent upon the humidity of the atmosphere. 
Evizasetu G, Britron. 
ACCESSIONS—JANUARY, 1Ig00. 
LABORATORIES. 
2 sterilizer: 
I photomicrographic camera eee by Mr. C, F. Cox). 
SEEDS. 
131 packets (by exchange with Botanic Garden of Smith College). 
1 packet Gingko (given by Mr. John Oakley Spencer). 
4 packets from Lake Mentasta, Alaska, collected by Mr. Jos. A. Bourke (given by 
Mr. E. F. Bourke 
101 packets fron Missouri and Texas, collected by Mr. B. F. Bush. 
