INDEX TO AMERICAN BOTANICAL LITERATURE 
(1907) 
The aim of this Index is to include all current botanical literature written by 
Americans, published in anne or based upon American material ; the word Amer- 
ica being used in its broadest s 
Reviews, and papers Shun: ost exclusively to forestry, agriculture, horticulture, 
manufactured products of Fe WO x: origin, or laboratory methods are not included, an 
no attempt is made to index the literature of bacteriology. An occasional exception is 
made in favor of some paper appearing in an American periodical which is devoted 
wholly to botany. Reprints are not mentioned unless they differ from the original in 
some important particular. If users of the Index will call the attention of the editor 
to errors or omissions their kindness will be appreciated. 
This Index is reprinted monthly on cards, and furnished in this form to subscribers, 
at the rate of one cent for each card. Selections of cards are not permitted ; each 
subscriber must take all cards published during the term of his subscription. Corre: 
spondence relating to the card-issue shou!d be addressed to the Treasurer of the Torrey 
Botanical Club 
Barnes, C. R. & Land, W. J.G. Bryological papers. I. The origin 
of air chambers. Bot. Gaz. 44: 197-213. f. 1-22. 18 S 1907. 
Bartlett, H. H. Flower color of the American diervillas, Rhodora 
9: 147, 148. 31 Au 1907. 
Bartlett, H. H. The retrograde color varieties of Gratio/a aurea. 
Rhodora 9: 122-124. 12 Au 1907. 
Beauverd, G. Plantae Damazianae brazilienses. V. Bull. Herb. 
Boiss. II. 7: 138-152. f.5. 4 F 1907; VI. 701-708. f. 6-8. 31 
Jl 1907. 
New og described in Piper, Peperomia (4), Stemodia, Utricularia, Barbacenia, 
and Airtel) 
Berry, E. W. Contributions to the Pleistocene flora of North Carolina. 
Jour. Geol. 15: 338-349. J 
New fossil species described in Pot on (2), Malus, Crataegus (2), Den- 
drium, and Vaccinium. 
» E. W. Palaeobotanical notes. Johns Hopkins Univ. Circ. 
1907": 79-91. f. 1-6. Jl 1907. 
Includes angeapred of new fossil species in Gleichenia, Osmunda, Williamsonia, 
Crataegus, and Ziz yphu: 
Binford, R. The open of the sporangium of Zygodium. Bot. 
— Gaz. 44: 214-224. f. 1-37. 18S 1907. 
Britton, N. L. Zrythroxylaceae. N. Am. Fl. 25: 59-66. 24 Au 
1907. 
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