12 
Annals of Botany. 
romia pellucida, xv. 1 1 1 ; of Sequoia sem- 
pervirens (*), xviii. 20 ; of Zea Mais (*), 
xix. 1 1 5. 
Embryo and seedling of Anhalonium (*), xii. 
462; of Astrophytum (*),xii. 457; of Cepha- 
locereus (*), xii. 450; of Cereus (*), xii. 
443 ; of Echinocactus (*), xii. 454 ; of 
Echinocereus (*), xii. 450; of Echinopsis 
(*), xii. 451 ; of Epiphyllum, xii. 448 ; of 
Leuchtenbergia (*), xii. 459 ; of Mamil- 
laria (*), xii. 460 ; of Melocactus, xii. 
459 ; of Opuntia (*), xii. 439 ; of Pelecy- 
phora, xii. 464 ; of Pereskia (*), xii. 438 ; 
of Pfeiffera, xii. 453 ; of Phyllocactus (*), 
xii. 446 ; of Pilocereus (*), xii. 449 ; of 
Rhipsalis (*), xii. 452. 
Embryology of Actea alba (*), xix. 450 ; of 
Aquilegia canadensis (*), xix. 455 ; of Ara- 
ceae (*), xiv. 1 ; of Delphinium tricorne 
(*), xix. 454 ; of Dicotyledons, anomalous 
(*), xix. 447 ; of Lilaea subulata (*), xii. 
1 ; of Sanguinaria canadensis (*), xix. 
452 ; of Stylophorum diphyllum (*), xix. 
454 ; of Syndesmon thalictroides, xix. 
456; of Triglochin maritimum (*),xiv. 100. 
Embryo-sac of Aglaonema (*), xiv. 8 ; of 
Anthurium (*), xiv. 12 ; of Anthurium 
violaceum var. leucocarpum (*), xix. 331 ; 
of Araceae(*), xiv. 1 ; of Dieffenbachia Se- 
guine (*), xiv. 4 ; of Lilaea subulata (*), 
xii. 14; of Lysichiton (*), xiv. 13; of 
Nephthytis liberica (*), xix. 339 ; of 
Peperomia pellucida (*), xiii. 626 ; xv. 
103 ; of Triglochin maritimum (*), xiv. 99. 
— homologies of, xiv. 696 ; xv. 114. 
Emulsin, occurrence in Polyporus squamo- 
sus, xx. 532. 
Encephalartos, carpophyll of (*), xv. 548. 
— villosus, sporophyll-structure (*), xii. 223. 
Endodermis in roots of Ruscus, an irregular 
(*), xiv. 157. 
— morphological value, xvi. 393. 
Endomyces coprophilus, n. sp ., description 
(*), xv. 324. 
— decipiens and Saccharomyces anomalus, 
relationship between, xiv. 237. 
Endophytic adaptation shown by Ery- 
siphe graminis, under cultural conditions, 
xix. 444. 
— member of the Erysipnaceae, Oidiopsis 
taurica (*), xx. 187. 
Endosperm of Aglaonema (*), xiv. 10; of 
Anthurium violaceum var. leucocarpum 
(*), xix. 333; of Lilaea subulata (*), xii. 
24; of Lysichiton (*), xiv. 17; of Neph- 
thytis liberica (*), xix. 343 ; of Pepero- 
mia pellucida (*), xv. 108 ; of Triglochin 
maritimum (*), xiv. 102. 
— of Phoenix dactylifera, incapacity of for 
self-digestion, xx. 61. 
Engler, A. — Plants of the Northern Tem- 
perate Zone in their Transition to the High 
Mountains of Tropical Africa, xviii. 523. 
Environment, relation of Cutleria to physi- 
cal, xii. 96. 
Enzyme and oxidase, xvii. 257. 
— cellulose, xiii. 49 ; delignifying (*), xv. 
125; proteolytic, xi. 563; xii. 545; xv. 
563 ; xvii. 237, 597. 
— of Nepenthes, xi. 563 ; xii. 545 ; xv. 563 ; 
of Polyporus squamosus, xx. 49 ; of 
Yeast, xi. 555 ; xii. 49 1. 
Enzyme - secreting cells in seedlings of 
Phoenix dactylifera (*), xviii. 267. 
Epidermoidal layer of Calamite roots (* f), 
xvii. 792 ; xviih 645. 
Epiphyllum, morphology of embryo and 
seedling, xii. 448. 
Equisetaceae, imperfect sporangia, xv. 255. 
Equisetum, infranodal organs (*), xv. 136 ; 
stele, nature of, xv. 774. 
Eranthis hiemalis, seedling-structure (*), 
xvii. 5, 56. 
Eremurus spectabilis, seedling-structure, 
xvii. 27. 
— turkestanicus, seedling-structure, xvii. 27. 
Eriksson, J. — On the Vegetative Life of 
some Uredineae, xix. 55. 
Errera, L. — Osmotic Optimum and Mea- 
surements, xii. 568. 
— Structure of the Yeast Cell, xii. 567. 
Erysinhaceae, cultural experiments with 
biologic forms of, xviii. 320 ; xix. 125. 
— Oidiopsis taurica, an endophytic member 
of (*), xx. 187. 
Ery siphe Aster is ct, E. taurica var. Duriaei and 
E. taurica var. Tygophylli , an endophytic 
member of the Erysiphaceae (*), xx. 187; 
description (*•), xx. 195 ; distribution, host- 
plants and synonymy, xx. 194, 198. 
— graminis, endophytic adaptation under 
cultural conditions, xix. 444. 
— lanuginosa and E. lichenoides , description, 
xx. 199 ; distribution and host-plants, xx. 
199 ; synonymy, xx. 198. 
Erythronium droppers, morphology and 
structure (*), xx. 436. 
— Hartwegi, seedling- structure (*), xvii. 25. 
Erythrophyll, protection afforded by, xi. 
460, 585. 
Escombe, F., and Brown, H. T. — Static 
Diffusion of Gases and Liquids in Relation 
to the Assimilation of Carbon and Trans- 
location in Plants, xiv. 537. 
Eucomis nana, seedling-structure (*), xvii. 18. 
Eurotium insigne, description (*), xv. 331. 
— microsporum, n. sp ., description (*), xv. 3 3 3. 
— stercorarium, description (*), xvi. 67. 
Eusporangiatae, past history of (+), xx. 222. 
Eustele, definition, xvi. 522. 
Euterpe edulis, seedling-structure, xvii. 50. 
Evolution, dorsiventrality of Podostemaceae 
with reference to current views on, xvi. 
593 - 
— of green Algae, principles of, xi. 97 ; xiv. 
647. 
