. Class-book of botany [microform] : being outlines of the structures, physiology, and classification of plants : with a flora of the United States and Canada. Botany; Botany; Plants; Plants; Botanique; Botanique; Plantes; Botanique. 641, fci>. 1. HelianthiiR head radiate. 2. Vertical section of tlic bead, phowing the sralen of the Involucr* »nd a siiiK'ie disk-flower remainiiii; upon the convex receptacle. .'. A perfect disk-flower KhowioK every piirt. 4. iradiate) of Solidngo. 5. A pistillate, ligulate flower of tlie ray. 6. A perfect disk fl. 7. A irKdiant) head of Taraxacum. ^. A
. Class-book of botany [microform] : being outlines of the structures, physiology, and classification of plants : with a flora of the United States and Canada. Botany; Botany; Plants; Plants; Botanique; Botanique; Plantes; Botanique. 641, fci>. 1. HelianthiiR head radiate. 2. Vertical section of tlic bead, phowing the sralen of the Involucr* »nd a siiiK'ie disk-flower remainiiii; upon the convex receptacle. .'. A perfect disk-flower KhowioK every piirt. 4. iradiate) of Solidngo. 5. A pistillate, ligulate flower of tlie ray. 6. A perfect disk fl. 7. A irKdiant) head of Taraxacum. ^. A perfect, ligulate fl. '.i. Aclieniiim, with its long beak and plumous piippusi. lU. V (radiant) head of Nabalus 11. A flower. I'A Lapps major, bead discoid. A flower. 14. One of the hooked scales. ;). A (discoid) head of Eupatoriimi puipureuin. 16. A flower, i;. Ambrosia (Pigweed). 18. Staminate head eidarged. 11». Pistillate involucre enlarged. 2U. The fettiU flower. The following (not conveniently used in Analysis) are De Candolle's SUBORDERS AND TRIBES. I. Tl'BULIFLORj;.—Corolla of the perfect fls. tubular, 6-lob(;(l. (A) Tkibk 1, V'eknoniace,*;. Branches of the style long, slender, terete, and hispid Si", over. Heads discoid ; flowers all alike perfect Nos. 1—8 TiiiBK 2, Eiri'ATOKiACE.«. Branches of the stylu clavate, obtuse, flattened, minutely pubf>scent. lids, discoid. FIs. all alike, i)erl'ect Nos. 4—15 Triuk.*?, A8TEB0iT) Bfanciies of the style flat, linear, downy above and opposite the distinct, stiirmatic lines, appendaged at top. Heads discoid or radiate Nos. 16—-Sft TuiBK 4, Branchesof the style linear, fringed at tho top, truncate or extended into a , hispid appendage Nos. 36—S7 Tribe 5, Cyxare.*!. Style thickened or node-like at top ; branches not appen- daged, the stigmatic lines not prominent, reaching the apex Nos. 8S—97 II. —Corollas all ligulate (radiant), the flowers
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Keywords: ., bookcentury1800, bookdecade, booksubjectbotany, booksubjectplants
