INDEX TO AMERICAN BOTANICAL LITERATURE 695 
Merrill, E. D. Studies on Philippine Melastomataceae, I. Philip. 
Jour. Sci. 8: (Bot.) 207-250. Jl 1913. 
Thirty-nine new species described. 
Merriman, M.L. Nuclear division in Spirogyra crassa, Bot. Gaz. 56: 
319-330. pl. TI, 12. 15 O 1913. 
Metcalf, H. The chestnut bark disease. Yearbook Dept. Agr. 1912: 
361-372. pl. 34-37. 1913. 
Mez, C. Additamenta monographica 1913. Repert. Sp, Nov. 12: 
411-421. 25S 1913. 
Includes new species in Nidularium (1), Aregelia (1), Tillandsia (3), Vriesea (2), 
Lindmania (1), Puya (1), Pitcairnia (3), Brocchinia (1), Hohenbergia (1), Aechmea (1). 
Mottier, D. M., & Nothnagel, M. The development and behavior of 
the chromosomes in the first or heterotypic mitosis of the pollen 
mother-cells of Allium cernuum Roth. Bull. Torrey Club 40: 555- 
565. pl. 23, 24. 15 O 1913. 
Nichols, G. E. The vegetation of Connecticut.—II. Virgin forests. 
Torreya 13: 199-215. f. I-5. 25 1913. 
Olive, E. W. Intermingling of perennial sporophytic and gameto- 
phytic generations in Puccinia Podophylli, P. obtegens, and Uromy- 
ces Glycyrrhizae. Ann. Myc. 11: 297-311. pl. 15. Au 1913. 
Osterhout, W. J. V. The organization of the cell with respect to 
permeability. Science II. 38: 408, 409. 19 S 1913. 
Pammel, L. H., & King, C. M. Four new fungous diseases in Iowa. 
Iowa Agi. Exp. Sta. Bull. 131: 199-221. f. 1-13. Ap 1912. 
Picard, M. A bibliography of works on meiosis and somatic mitosis 
in the angiosperms. Bull. Torrey Club 40: 575-590. 15 O 1913. 
Praeger, W. E. Plant breeding. Ann. Rep. Michigan Acad. Sci. 14: 
22-32. 1912. , 
Quehl, L. Beschreibung einiger Kakteenbliiten. Monats. Kakteenk. 
23:.120.. 35 S 1013. 
Rolfe, R. A. Catasetum wists cciaa Curt. Bot. Mag. IV. 9: pl. 
8514. S 1913. 
A plant from Peru. 
Rolfe, R.A. Rosa foliolosa. Curt. Bot. Mag. IV.9: I. 8513. S1913.- 
A plant from North America. 
Rolfe, R. A. Stanhopea grandiflora. Curt. Bot. Mag. IV. 9: pl. 8517. 
O 1913. 
A plant from Ecuador. 
Rydberg, P. A. Studies on the Rocky Mountain flora—XXVI. Bull. 
