152 The Botanical Gazette. [April, 
and part of the coils are to the right, and part to the left. 
The coils are about one inch in width, and in my specimens 
they vary from five to nine in number. The fruit varies in 
size from about an inch to three-quarters of an inch in di- 
ameter. One must be sure to put into a pocket on the sheet 
cross-sections of the rootstock and of the fruit. The latter 
will show the seeds with their sac-like aril covering, and their 
peculiar habit of lining the inner face of the carpels, instead 
of growing on a distinct placenta. 
These furnishings to a herbarium show the wonderful ap- 
paratus needed to produce the delicate flower of the water- 
lily. 
APOCYNUM ANDROSAEMIFOLIUM L. Spreading dogbane. 
I have a peculiar case of teratology in this plant. Two 
leaves have grown intoone. They have a common base, and 
the appearance is the same as if the leaves had lapped over 
on to each other for about three quarters of an inch. There 
are two midribs, which are about half an inch apart in the 
middle of the leaf, and each leaf has its own separate apex, 
the two points being three-eighths of an inch apart. The 
before one, partly overlapping. I collected the specimen 
June 16, 1894, in Weston, Mass. 
TYPHA LATIFOLIA L. Common cat-tail flag. 
To represent completely our common cat-tail flag, the plant 
must be visited early in the season, before the enveloping 
spathes or bracts have opened. My herbarium sheets show 
these early forms, and aid me in the following sketch. 
visited a swamp in Cambridge, Mass., on June 26th, and 
found the plant in prime condition. I first secured a specl- 
men, in which the inflorescence was completely invisible. 
One spathe enwrapped the staminate spike above. It was 
firmly attached at the base, and terminated in a leafy projec- 
tion five inches long. Another spathe enclosed the pistillate 
spike, and the greater part of the staminate spike, an 
had a leafy projection just a foot long, overtopping the 
staminate spike by five and one-half inches. These leafy 
