. The elements of structural botany [microform] : with special reference to the study of Canadian plants ; to which is added a selection of examination papers. Plant anatomy; Botany; Plantes; Botanique. ELE?IENTS OF STRUCTURAL BOTANY. sd. the lui'bcr is turned towards the ccntr of the tiower, it "ij saicL to l)e iiitivrcc; if turned outwards, \ 1^3. Tlie cells of anthers commoiil" open along their outer edges to c'lia- cliarge then- poUon (Fig. 147). In most of tho Heaths, liowever, the pol- len is 'lirougl^ a, minute A aperture at tho top Ox each eel) (J?i3'o j
. The elements of structural botany [microform] : with special reference to the study of Canadian plants ; to which is added a selection of examination papers. Plant anatomy; Botany; Plantes; Botanique. ELE?IENTS OF STRUCTURAL BOTANY. sd. the lui'bcr is turned towards the ccntr of the tiower, it "ij saicL to l)e iiitivrcc; if turned outwards, \ 1^3. Tlie cells of anthers commoiil" open along their outer edges to c'lia- cliarge then- poUon (Fig. 147). In most of tho Heaths, liowever, the pol- len is 'lirougl^ a, minute A aperture at tho top Ox each eel) (J?i3'o ).^3^^ in our F-i :o Cohosh oack ::.', S:5i'^.''":H with a lid cr va^ve near ohe top, T,!::c.: opens n 1 id-id of iiinre (Fig, '.), Vj6o 6,:Ta2n,: mcsy 'co Gitlici' euurely distinca from ac': Cthor, in which case Jihcy are described ac dian- ch'ouGj '^injSy ociandroitCy t:c., accordinp; io ohcii ]iumbcr (or, ii'Jioro than tvronty, t^s indefinite), or tlioy ma; - be united in various wr^ySo i: their anthers r^rc unitec. i:. r^ circle, '.vhile the iiiamcnts are separate (Fisr ) they are ^aia to ^o sinifjencrAnm, but it th: iiiamcutc anite to form :, tube, whiL the antherc rcmai::i distmcj, they are said to be monaJeljjhouz (Figc 8'^) ; rl they are in two groups they aro dmddphous (Iig. W,\" if in threCj tfiadelphous; if in moro than three, potya- chlphouSo 10^, As to insertion, when stamens are the receptacle, they arc liypogynous; when borne on the calyx, periqiinous ; when borne on the ovary, epirjy- nous ; :.nd it'inserted on the corolla, epipetalouo. They may, howe^'cr, be borne even on the style, as in Orchic. and then they described as gynandrous. ISO. If the stamens are four in number, in two -gcXvz of dif!crent lengths, they are said to ])c didyna- mous (Fig. .VG); if cin in number, fonr long and twc short, they ?.yc â ^ct'^ (lir;. l3), cjndi, Please note that these images are extrac
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Keywords: ., book, bookcentury1800, booksubjectbotany, booksubjectplantanatomy
