INDEX TO AMERICAN BOTANICAL LITERATURE 349 
Hus, H. The origin of X Capsella Bursa-pastoris arachnoidea. Am. 
Nat. 48: 193-235. f. r-2z. Ap 1914. 
Jeffrey, E.C. The mutation myth. Science II. 39: 488-491. 3 Ap 
1914. 
Johnson, E. C. A study of some imperfect fungi isolated from wheat, 
oat,and barley plants. Jour. Agr. Research 1: 475-490. pl. 62, 63. 
25 Mr 1914. 
Keitt, T. E., & Tarbox, F.G. Change in composition of the oat plant 
as it approaches maturity. S. Carolina Agr. Exp. Sta. Bull. 163: 
3716." Ap 1912. 
Kelly, H. A. Some American medical botanists commemorated in our 
botanical nomenclature. 1-216. Troy. 1914.  [Illust.] 
Laat, J. E. van der. Las enfermedades del Banano. Bol. Fomento 4: 
II-20. 1914. [Illust.] | 
An English translation appears on pages 21-27. 
Lamb, W. H. A synopsis of the red firs. Proc. Soc. Am. Forest. 7: 
184-186. pl. 1 +f. 7-9: N 1912. 
Lieske, R. Brasilianische Studien. Jahrb. Wiss. Bot. 53: 502-526. 
f. 1-5. Mr 1914. 
Linsbauer, K. Uber Saxifraga stellaris L. f. comosa Poir. Ost. Bot. 
Zeits. 63: 481-486. D 1913. 
Lipman, J. G., and others. Conditions affecting the availability of 
nitrogen compounds in vegetation experiments. New Jersey Agr. 
Exp. Sta. Bull. 257: 3-45. pl. 1-6. 30 N 1912. 
» 
MacDougal, D.T. The determinative action of environic factors upon 
Neobeckia aquatica Greene. Flora 106: 264-280. f. r-14. 10 Mr 
1914. 
Mackenzie, K. K. A new genus from Missouri. Torreya 14: 67, 68. 
17 Mr 1914. 
Geocar pon gen. nov. 
Maxon, W.R. A family of ferns new to the United States. Am. Fern 
Jour. 4: 15-17. Mr 1914. 
McAllister, F. The pyrenoid of Anthoceros. Am. Jour. Bot. 1: 79-95. 
pl. 8. F 1914. 
McDougall, W.B. On the mycorrhizas of forest trees. Am. Jour. Bot. 
t; 51-74. pl. 4-7 +f. 1.. F 1914. 
Merrill, G. K. Noteworthy Lecideaceae from Knox County, Maine. 
Bryologist 16: 91-94. N 1913. 
Meyer, R. Einiges iiber die Varietaten des Echinocactus Ottonis Lk. u. 
Otto. Monats. Kakteenk. 24: 40, 41. 15 Mr 1914. 
