Index to recent Literature relating to American Botany 
Beal, W. J. The Study of Botany thirty-six Years ago with Asa Gray. 
School Science, 1: 296. N. 1gor. 
Bitter, G. Zur Morphologie und Systematik von Parmelia, Untergat- 
tung Hypogymnia. Hedwigia, 40: 171-192. f/. 70, 7z. 20 Je. 
1901; 193-256. 15 Au. Ig01; 257-274. f. 18-27. 20 O. 1901. 
Includes new species. ¢ 
Blackman, F. F. & Matthaei, G. L.C. On the Reaction of Leaves 
to traumatic Stimulation. Annals Bot. 15: 533-546. 4 4-8. pl. 29. 
S. Igor. 
Brotherus, V.F. Die Laubmoose der ersten Regnellschen Expedition. 
Bihang Svenska Vet.-Akad. Handl. 26’: 1-65. 1900. 
New species in Bruchia, Dicranella (3), Trematodon, Campylopus, Ochrobryum, 
Fissidens (6), Méinckemeyera, Calymperes, Hyophila (2), Tortella, Barbula, Hymeno- 
somum, Glyphomitrium (2), Macromitrium, Schlotheimia (2), Funaria, Physcomi- 
trium (4), Philonotis (2), Bryum (3), Catharinea, Solmsiella, Hookeria (4), Braunia, 
Cryphaea, Meteorium, Pilotrichella, Porotrichum, Thamnium, Sematophyllum, Rha- 
Phidostegium, Isopterygium, Microthamnium (2), Ectropothecium, Stereophyllum (3), 
fHypnum (3), and Thuidium (2). 
Brun, J. Diatomées d’eau douce de 1’Ile Jan Moyen et de la céte est 
du Groenland, récoltées par l’ Expedition Suedoise de 1899. Bihang 
Svenska Vet.-Akad. Handl. 26": 1-22. A/. 7-2. 1901. 
Carleton, M. A. Macaroni Wheats. Bull. U. S. Dept. Agric. (Plant 
Ind.) 3: 1-62. A/. r-rz. 23 D. r1gor. 
Church, A. H. Note on Phyllotaxis. ‘Annals Bot. 15: 481-490. 7. 
2,3. S. Igor. 
Collins, F. S. The Algae of Jamaica. Proc. Am. Acad. Arts and 
Sciences, 37: 231-270. N. Igol. 
New species in Dictyerpa (gen. nov.), Scytonema, Diplochaete (gen. nov. ), Clado- 
Phora, Goniotrichum, Cordylecladia, and Antithamnion. 
Ferguson, M.C. The Development of the Egg and Fertilization in 
Pinus Strobus. Annals Bot. 15: 435-479. pl. 23-25. 8. 1901. 
Greene, E. L. Certain Canadian Violets. Ottawa Nat. 15: 191, 192. 
3 D. 1901. 
Viola leucopetala, sp. nov. 
Hall, AyD. Simple Apparatus for the Measurement of Transpiration 
from a Shoot. Annals Bot. 15: 558-560. 7.9. S. 1901. 
B45 
