Analytical keys to the genera and species of the fresh water Algæ and the Desmidieæ of the United States; founded on the classification of the Rev. Francis Wolle's monographs

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1893 Excerpt: ...as wide, longata, 214 t. " " " 22-25//; spore slightly longer than wide, subsalsa, 212 u. Mature spore yellow, spore cell much inflated,.. punctata, 215 v. Spirals 2 (w). v. " 3 (y). v. " 4 (ee). v. " 5 (it). v. " 6 or more (jj). w. Spore-bearing cells inflated, spore elliptic or ovate, elongata, 221 w." " "not or only slightly swollen (x). x. Filaments 32-40// in diam decimina, 216 x. " 43-S M"" dubia, 217 x. " 55-60//"" subcegua, 220 jc. Mature spores yellow, oval, 4 longer than wide. neglecta, 216 y." "not yellow (z). z. Diameter of filaments 90-100//; spore oval... jugalis, 219 z. " " " 40-65// (aa). z. " " " 32-36// (#). aa. Spore orbicular, flattened orthospira 218 Spore not flattened (bb). bb. Spore spherical or broadly ovate subcequa, 217 bb. Spore not elliptical or ovate (cc). cc. Spore oval-elliptical or subcylindrical... dubia, adnata, 220 cc. Spore oval or subglobose, spore cells 2-4 times longer than wide, majuscula, 221 dd. Sterile cells 7-11, fertile cells about 4, times as long as wide, rivularis, 220 ee. Spore-bearing cells much inflated, spore oval, 80// long, fluviatilis, 216 ee." " "slightly or not inflated (//). ff. Spore flattend, orbicular orthospira, 218 ff. Spore not flattened (gg). gg. Diameter of filaments 150-156// crassa, 219 gg. " " " 102-no// setiformis, 219 gg. " " " 90-100//........ jugalis, 219 gg. " " " 72-7$M(M). hh. Chlorophyll bands making 1-4 turns in each cell. nitida, 217 hh." " "1 Yz "spore 5o// wide, parvispora, 221 ii. Spores flattened, orbicular, membrane smooth.. orthospira, 218 ii. Spores" " "punctat...