INDEX TO AMERICAN BOTANICAL LITERATURE 133 
Fred, E. B. A study of the formation of nitrates in various types of 
Virginia soil, I. Preliminary report. Centralb. Bakt. Zweite Abt. 
39: 455-468. 6 D 1913. 
Fritsch, K. Beitrag zur Kenntnis der Gesnerioideae. Bot. Jahrb. 50: 
392-439. as N 1913. 
Includ w genus, Fiebrigia, and 34 new species in Monopyle (2), Fiebrigia 
(3); eileois: at Heppiella (5), Seemannia on Diasgens (6), Kohleria (10), 
Campania (5), and Rechsteineria (3) from South Amer 
Gardner, V. R. A preliminary report on the arenas of the sweet 
cherry. Oregon Agr. Exp. Sta. Bull. 116: 3-40. pl. 1-12. Au 1913. 
Glaziou, A.F.M. Liste des plantes du Brésil central. Mém: Soc. Bot. 
France 59: 585-661. 13 S 1913. 
Graff, P.W. Additions to the basidiomycetous flora of the Philippines, 
Philip. Jour. Sci. 8: (Bot.) 299-309. pl. 8-10. N 1913. 
Includes Exidia lagunensis, Laschia philippinensis, Lentinus candidus, L. lague 
nensis, Volvaria pruinosa, Bovista Jonesii, and Naucoria manilensis, spp. nov. 
Hamet, R. Uber vier neue Sedum aus Sikkim und Peru. Bot. Jahrb. 
Beibl. 50: 8-12. 25 N 1913. 
Hartley, C. The blights of coniferous nursery stock. U. S. Dept. 
Agr. Bull. 44: 1-21. 12 D 1913. 
Harvey, R.B. The structure and diagnostic value of the starch grain. 
Proc. Indiana Acad. Sci. 1912: 121-126. f. I-4. 1913. 
Heald, F. D., & Gardner, M. W. The relative prevalence of pycno- 
spores and ascospores of the chestnut blight fungus during the 
winter. Phytopathology 3: 296-305. pl. 26-28. D 1913. 
Heimburger, H. V. Photosynthesis in submerged land plants. Proc. 
Indiana Acad. Sci. 1912: 95-98. 1913. 
Heller, A. A. The conifers of the Charleston Mountains,Nevada. 
Muhlenbergia 9: 78-80. 9 D 1913. 
Hesler, L. R. Physalospora Cydoniae. Phytopathology 3: 290-295. 
pl. 25 +f. 2,2. D 1913. 
Hicken, C. M. Contribucion al estudio de las Pteridéfitas de la Isla 
de Pascua: descripcion de dos nuevas especies. Bol. Mus. Nac 
Chile 5: 131-137. pl. 26, 27. 1913. 
Includes Polypodium Fuentesi and Dryopteris Espinosai, spp. nov. 
Hopkins, L.S. A new Polystichum from British Columbia. Am. Fern 
Jour. 3: 116-118. pl. 9. D 1913. 
Polystichum Andersoni sp. nov. 
Howe, R.H., Jr. The foliaceous and fruticose lichens of Concord, Massa- 
chusetts. With keys to all New England species. Proc. Thoreau 
Mus. Nat. Hist. 1: 27-29. 24 S 1913. 
