FISHER: SEED DEVELOPMENT IN THE GENUS PEPEROMIA 155 
PEPEROMIA GALIOIDES HBK. 
The flower-spikes for the study of P. galioides HBK. were 
collected in the greenhouse of The Johns Hopkins University at 
Homewood. The plant from which they were obtained was 
collected near Cinchona, in the Blue Mountains of Jamaica, where 
it grew on the crags on the flank of John Crow Peak. 
The development of the embryo sac, from the stage of the defin- 
itive archesporial cell, or embryo sac mother-cell, to the sixteen- 
nucleate embryo sac, is essentially the same as that of P. reflexa. 
Evanescent walls were seen in the four-nucleate stage. 
PEPEROMIA LANGSDORFFIL Mig. (?) 
The material used in the study of P. Langsdorffii Miq. (?) was 
collected in the greenhouse of The Johns Hopkins University at 
Homewood. According to the Berlin Botanical Garden, the plant 
is a native of the West Indies and the northern part of South 
America. 
The development of the embryo sac, from the embryo sac 
mother-cell stage to the two-nucleate embryo sac, is essentially 
the same as that of P. reflexa. E-vanescent walls were observed 
in the two-nucleate embryo sac. 
PIPER TUBERCULATUM Jacq. 
The only species of the genus Piper examined in this study 
was the arborescent species P. tuberculatum Jacq. The flower- 
spikes were collected from a tree twenty feet in height, which was 
8towing in the forest on the flanks of John Crow Peak at about 
5,300 feet altitude, near Cinchona, in the Blue Mountains of 
Jamaica. Part of the material was collected and fixed in June, 
1906, by Professor D. S. Johnson. The remainder was collected 
from the same tree by Mr. Jonas Walker, caretaker of the Cin- 
chona Gardens, at intervals from July 8 to October 30, 1912, and 
as collected it was immediately put into a solution consisting of 
ur per cent. formalin in seventy per cent. alcohol,* in which it 
remained for several weeks, after which time it was run up through 
the alcohols as though it had been fixed. 
In this species the flower consists of four stamens and a single 
e by Dr. Charles J. 
* The formula for this solution was kindly furnished to me by D 
Chamberlain, 
