466 The Botanical Gazette. [December, 
. 4. Same; side view of subtending bract-like leaf with its sepals, lower and 
upper bracts, calyx, wing, and a glimpse of the keel. Fig. 
tylosanthes ela- 
tior Swartz. Perfect, but infertile flower, furnishing only the pollen, a side 
vi ig. 6. Female flower, consisting only of an y; the two bracts 
ew. Fig. ovary; th 
shown below. Fig, 7. Enothera linearis Michx. with aberrant forms of petals. 
Bristol, Florida. 
BRIEFER ARTICLES. 
Bibliography of American botany.—The following circular has re- 
cently been sent to botanists and we desire to aid in giving it the widest 
publicity. See also editorial comment, p. 467. 
“One item recommended by the Committee on Bibliography of 
the Madison Botanical Congress is an author catalogue of current 
works on American botany. To secure this Dr. N. L. Britton, editor 
of the Bulletin of the Torrey Botanical Club, kindly offered to change 
the monthly ‘Index to literature relating to American botany’ to the 
form recommended. 
“Dr. Britton has experimented with details of form and typography 
and also, as planned, has experimented in reprinting the titles on reg- 
ular index cards. He estimates that these cards will number nearly 
tooo per year and that if the number of subscribers is sufficient, the 
Series for 1894 can be supplied for five dollars. 
“The cards will be of extra heavy linen ledger paper, accurately cut 
and the titles will be exact reprints of the matter that appears each 
month in the Bulletin, which will enable subscribers to keep the entire 
series in a single alphabet and to incorporate it with other indexes if 
they wish. 
“This is the first step toward accomplishing the plans recommended 
by the Committee, and it is hoped that it will meet the approval and 
support of American botanists. é 
“Dr. Britton has asked the undersigned to take charge of subscrip- 
tions and the monthly distribution of the cards. It is important uae 
we know very soon how many copies will be wanted. If you want It 
kindly say so at once. If you can not subscribe now and sete 
may later, we need to know it. In any case please reply on encl 
postal. Samples inclosed.—CamBripGE BOTANICAL SupPLy CO., Cam- 
bridge, Mass.” 
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