﻿Index to American Botanical literature 683 



Mattoon, W. R. The southern cypress. U. S. Dept. Agr. Bull. 272: 



1-74. pi. 1-12 +/. 1-7. 27 S 1915. 

 Meinecke, E. P. Spore measurements. Science II. 42: 430, 431. 24 S 



1915- 

 Melchers, L. E. A new alfalfa leaf-spot in America. Science II. 42: 



536, 537. 15 O 1915- 



Merrill, E. D. A contribution to the bibliography of the botany of 



Borneo. Sarawak Mus. Jour. 2: 99-136. S 191 5. 

 Merrill, E. D. On the application of the generic name Nauclea of 



Linnaeus. Jour. Washington Acad. Sci. 5: 53(^542. 19 S 1915- 

 Merrill, M. C. Electrolytic determination of exosmosis from the roots 



of plants subjected to the action of various agents. Ann. Missouri 



Bot. Gard. 2: 507-572./. 1-18. S 1915. 

 Merrill, M. C. Some relations of plants to distilled water and certain 



dilute toxic solutions. Ann. Missouri Bot. Gard. 2: 459-506. 



pl. 13-16 +/. 1-4- S 1915. 



This paper is also published in Am. Jour. Phar. 87: S49-6o6. D ipiS- 

 Meyer, R. Die verschiedenen Formen des Echinocactus setispinus 



Eng. Monats. Kakteenk. 25: 37-39. My 1915. 

 Mottier, D. M. Beobachtungen iiber einige Farnprothallien mit Bezug 



auf eingebettete Antheridien und Apogamie. Jahrb. VViss. Bot. 56: 



65-83./. i-j. 1915. 

 Newcombe, F. C. Das Verhalten der Windepflanzen in der Dunkelheit. 



Jahrb. Wiss. Bot. 56: 511-528. 1915. 

 O'Gara, P. J. A bacterial disease of western wheat-grass. Science 



II. 42: 616, 617. 29 O 1915. 



First account of the occurrence of a new type of bacterial disease in America. 

 Osmun, A. V. Report of the botanist. Ann. Rep. Massachusetts 



Agr. Exp. Sta. 27: 55a-59a. Ja 1915. 

 Osmun, A. V., & Anderson, P. J. Ring-spot of cauliflower. Phy- 

 topathology 5: 260-265./. 1-4. O 1 91 5. 

 Oskamp, J. Soil temperatures as influenced by cultural methods. 



Jour. Agr. Research 5: 173-177./. 1-4. 25 O 1915- 

 Peirce, G. Kin multipler Klinostat. Jahrb. Wiss. Bot. 56: 33t>-336. 



/. I, 2. 1915. 

 Porsild, M. P. Naturfredning i danske Gronland. Meddelelser om 



Gronland 51: 253-263./. i, 2. 1915. 

 Porsild, M. P. On the genus Antennaria in Greenland. Meddelelser 



om Gronland Si: 267-281./. 1-7. 1915. 



Includes A. glabrata and A. intermedia, spp- nov. 

 Rolfs, F. M. A bacterial disease of stone fruits. Cornell Agr. Exp. 



Sta. Mem. 8: 381-436./. 5Q-70. Jl 1915- 



