INDEX TO VOLUME I 
549 
McAllister, F. The pyrenoid of An- 
thoceros, 79 
Metabolism of plants, effect of acid 
and alkaline solutions upon, 412 
Mougeotia tumidula, 297 
Mycorhizas of forest trees, 51 
Nicotiana, floral abnormalities in, 23 
Node, anatomy of, 303, 441 
Notes on the anatomy of the punctatus 
gall, 531 
Nuclear behavior in promycelia, 37 
Oedogonium pratense, 297; particolum, 
298; illinoiense, 299; pauco-costa- 
tum, 300 
Oenothera stenopetala mut. lasiopetala, 
237; cruciata, 238; atrovirens, 239; 
venosa, 241; biennis, var. leptomeres, 
242; stenomeres, 242 
Oenotheras of sub-genus Onagra, 226 
Onagra, 226 
Osmotic pressure of expressed vegetable 
saps, 75 
Parasite, relations of, to host and 
environment, 104 
Parasitism, 98 
Pathology, plant, 97 
Peperomia hispidula, structure and seed- 
development of, 323, 357 
Perithecia, expulsion of ascospores from, 
in chestnut blight fungus, 499 
Perithecial necks, effect of removal of, 
511 
Petalody, 24 
Phaseolus vulgaris, somatic characters 
and fertility in, 398 
Phylogeny of Angiosperms, 303, 441 
Physarella mirabilis, formation of the 
capillitium and development of, 274 
Pickett, F. L. Some ecological adapta- 
tion of certain fern prothallia — Camp- 
tosorus rhizophyllus Link., Asplenium 
platyneuron Oakes, 477 
Piperaceae, studies of the development 
, of, 323, 357 
Pistillody, 26 
Plant pathology, problems and progress 
in, 97 
Plowrightia morbosa, 112 
Plus and minus strains in the genus 
Glomerella, 244 
Polygonaceae, observations on the de- 
velopment and germination of the 
seed in certain, 454 
Polygonella, 461 ; articulata, 470 
Polygonum, 456 
Polygonum scandens, 471 
Populus deltoides, host of Gloeosporium, 
245 
Promycelia of Caeoma nitens and Puc- 
cinia Peckiana, 37 
Prothallia, of Camptosorus and Asplen- 
ium, 477 
Prunus virginiana, Black knot on, 112 
Puccinia Peckiana, 37 
Punctatus gall, notes on the anatomy of 
530 
Pyrenoid of Anthoceros, 79 
Quercus velutina, host of punctatus gall, 
531 
Rheum, 463 
Rumex crispus, 464 
Russula, causing mycorhizas, 56 
Sanio, bars of, 522 
Scleroderma vulgar e, causing mycorhizas 
58 
Seed-development of Peperomia hispid- 
ula, 323, 357 
Seed, germination of Peperomia, 375 
Seed in certain Polygonaceae, 454 
Septoria cerasina, 147 
Shreve, F. The role of winter tempera- 
tures in determining the distribution 
of plants, 194 
SiNNOTT, E. W. Investigations on the 
phylogeny of the Angiosperms. i. 
The anatomy of the node as an aid in 
the classification of Angiosperms, 303 
SiNNOTT, E. W. and Bailey, I. W. 
