Index to Recent Literature 657 



Krasan, F. Beitrag zur Klarung einiger phytographischer Begriffe. 

 Engler's Bot. Jahrb. Beiblatt, 69: 3-38, 16 Au. 1901. 



Krasan, F. Variete, Race, Modification. Act. Congres Internat. 

 Bot. Paris, 366-369. 1900. 



Leavitt, R. G. Notes on the Embryology of some New England 

 Orchids. Rhodora, 3: 61-63./. 1, 2. 5 Mr. 1901 ; 202-205. pL 

 33. 12 Jl. 1901. 



Leveille, H. Nouvelle classification des hybrides. Act. Congres In- 

 ternat. Bot. Paris, 355-358, 361. 1900. 



Lindman, C. A. M. Einige Beitrage zu den Aristolochiaceen. Bull. 

 Herb. Boissier, II. 1 : 522-528.//. 7, 8. 30 Ap. 1901. 



Includes two new species of Aristolochia. 



Livingston, B. E. Further Notes on the Physiology of Polymorphism 

 in Green Algae. Bot. Gaz. 32: 292-302. 21 O. 1901. 



Lutz, L. & Gueguen, F. De V unification des methodes de culture 

 pour la determination des Mucedinees et des levures. Act. Congres 

 Internat. Bot. Paris, 415-423. 1900. 



Lyon, F. M. A Study of the Sporangia and Gametophytes of Selagi- 

 nella apus and Selaginella rupestris. Bot. Gaz. 32: 1 24-141. //. 

 3-9. 20 Au. 1901 ; 170-194. 24. S. 1901. 



Lyon, H. L. Preliminary Note on Embryogeny of Nelumbo. Sci- 

 ence, II. 12: 470. 22 Mr. 1901. 



MacDougal, D. T. Distribution of Pterospora. Torreya, I: 10 1, 

 102. 28 S. 1901. 



Maire, R. L'evolution nucleaire chez les Uredinees et la sexualite. 

 Act. Congres Internat. Bot. Paris, 135-150. 1900. 



Massee, G. & Salmon, E. S. Researches on coprophilous Fungi. 



Ann. Bot. 15: 313-358.//. 17,18. Je. 1901. 



Meehan, T. Contributions to the Life-history of Plants. No. XV 

 The Bending of mature Wood in Trees. Proc. Acad. Nat. Sci. 

 Fhila. 53: 354-365- I9 QI - 



Meehan, T. Thomas Conrad Porter. Rhodora, 3 : 191-193- I2 J 1 - 

 1 90 1. 



Metcalf, H. Notes on the Ferns of Maranocook, Maine. Rhodora, 

 3 : 236, 237. 16 S. 1901. 



Morrell, J. M. H. Some Maine Plants and their Uses, "wise and 

 otherwise." Rhodora, 3 : 129-132. 20 My. 1901. 



