INDEX TO AMERICAN BOTANICAL LITERATURE 
1920-1924 
The aim of this Index is to include all current botanical literature written by 
Americans, published in America, or based upon American material; the word 
America being used in the broadest sense. 
Reviews, and papers that relate exclusively to forestry, pater te horti- 
culture, pei ae products: of vegetable origin, or la ratory methods 
f bacteriology. 
An occasional hero is made i in favor of some paper appearing in an Ameri- 
can 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 i of the editor to errors or omissions, their 
kindness will be appreciated. 
_ This Index is Suerte asin on cards, and furnished in this form to 
subscribers at the rate of three cents for each card. lections of cards are 
not permitted; each subscriber must take all cards published during the term 
of his subscription. Correspondence relating to the card issue should be 
addressed to Dr. Fred J. Seaver, N. Y. Botanical Garden, Bronx Park, N. Y. 
City. 
Aamodt, O.S. The inheritance of growth habit and resistance 
to stem rust in a cross between two varieties of common 
wheat.. Jour. Agr. Research 24: 457-470. pl. 1,2. 12 My 
1923. 
Abrams, L. R. An illustrated flora of the Pacific states, vol. I. 
p. i-xii + 1-558. Stanford University, California. 1923. 
[Tlust.] 
Abrams, L. R., & Coville, F. V. Juncaceae. In Abrams, L. R., 
An oo flora of the Pacific states 1: 350-371. 1923. 
[Illus 
Sana Juncus macrandrus, sp. nov. 
Allen, R. F. Cytological studies of infection of Baart, Kanred, 
and Mindum wheats by Puccinia graminis Tritict forms III 
and XIX. Jour. Agr. Research 26: 571-604. pl. 1-7. 
22 D 1923. 
Ames, O. Additions to the orchid flora of Central America. 
mone Orchid. 4: 1-60. pl. 2, 3. 4 My 1923. 
ncludes Lankasterella, gen. and sp. nov., and new species in Campylo- 
centrum an, Chondrorrhyncha (1), Crissuchis (2), Cryptophoranthus (1), Dichaea 
311 
