INDEX TO AMERICAN BOTANICAL LITERATURE 507 
Lorenz, A. Notes on Radula obconica Sull. Bryologist 21: 56-59. 
pl. 25. Jl 1918. 
Love, H. H., & Craig, W. T. The relation between color and other 
characters in certain Avena crosses. Am. Nat. 52: 369-383. S 
1918. 
MacCaughey, V. An endemic Begonia of Hawaii. Bot. Gaz. 66: 273- 
275. 165 1918. 
MacCaughey, V. The olona, Hawaii's unexcelled fibre plant. Science 
II. 48: 236-238. 6S 1918. 
MacCaughey, V. A survey of the Hawaiian coral reefs. Am. Nat. 52: 
409-438. f. 1-9. S 1918. 
MacDaniels,*L. H. The histology of the phloem in certain woody 
angiosperms. Am. Jour. Bot. §: 347-378. pl. 24-29. 3 Au 1918. 
Matz, J. Some diseases of the fig. Florida Agr. Exp. Sta. Bull. 149: 
1-10. f. 1-5. Au 1918. 
McCubbin, W. A. Peach canker. Canada Dept. Agr. Dom. Exp. 
Farms Bull. 37: 1-20. pl. 1-O+f. 1, 2. 1918. 
McCulloch, L. A morphological and cultural note on the organism 
causing Stewart’s disease of sweet corn. Phytopathology 8: 440, 
441. pl. 1. Au 1918. 
Merrill, E. D. Notes on the flora of Loh Fau Mountain, Kwangtung 
Province, China. Philip. Jour. Sci. 13: (Bot.) 123-161. My 1918. 
Twenty-three new species are described. 
Moxley, G. L. Additions to the lichen flora of southern California. 
Bull. So. Calif. Acad. Sci. 17: 61, 62. Jl 1918. 
Murrill, W. A. Illustrations of fungi—X XIX. Mycologia 10: 177- 
181. pl. 8. Jl 1918. 
Prunulus viscidipes sp. NOV., Laccaria amethystea, L. striatula, Leptoniella conica 
sp. nov., Prunulus galericulatus, Omphalopsis fibula, Clitocybe farinacea, Marasmius 
dichrons and M. institius are illustrated in color. : 
Nash, G. V. Hardy woody plants in the New York Botanical Garden. 
Jour. N. Y. Bot. Gard. 19: 58-62. Mr 1918; 86-91. Ap 1918; 
108-112. My 1918; 139-142. Je 1918; 167-171. Jl 1918; 192-196. 
Au 1918. 
Nelson, J. C. An addition to our food plants. Am. Bot. 24: 97-99- 
Au 1918 
Crambe maritima. . 
Nelson, J.C. A new form of Prunella vulgaris. Am. Bot. 24: 82-85. 
Ison, J 
Au 1918. [Illust.] 
