KEY TO PLATE XXIV 



No. i. Aspen 

 (Populus tremu/a, L.) 

 \, Pjstiliate flower, 

 with ovary, and 4-fid 

 stigma enclosed, and 

 laciniate downy scale. 

 .4, Stamioate flower, 

 with long-stalked sta- 

 mens, ana subtending 

 ciliate scale, c, Fe- 

 male catkins, with 

 scales at the base, 

 and buds, d, Fol'age 

 leaf, with comp'eas^d 

 leaf-stalk and crenate 

 border. Acres", this 

 lies a male j. catkin 

 with tuft of scales l>e- 

 lowrf and 

 panded buc& 



No. 2. 



- a, Flower, 

 showing suu... -,, r ~. 

 lip, and lateral lobes., 

 of labiate corolla, and 

 the long-forked lower 

 lip ; also some sepals ; 

 and within the corolla 

 the anther and 2 pol- 

 linia. b, Raceme of 

 flowers, in various 

 stages, and below 

 scape' and .-, 2 ovatfe 

 paired leaves nearly 



No. 3. Bee Orcfus 



(Ophrys apifera^ 



Buds.; 



a, Flower enlaced, 

 showing the spreao 

 ing perianth, ;tmi 

 bee-like marking;, of 

 the 3-ioberi iow^r lip, 

 and 3 piiik ovate se- 

 pals, the column and 

 arched anther, pollinia, 

 and tubercles at the 

 base of the lateral 

 lobes. *, -Ohe of the 

 pollinia. c, Spike, with 

 oblong kaf, andi flowers 

 in various stages^ en- 

 dosed in large leafy 

 Twacfe., 



No. 4. Snowdr 

 (Galantkus nivah's,L.) 



a, Ovoid bulb, whh 

 roots below, and 

 sheath. b, Scape, 

 with 2-fid leaves, and 

 drooping flower en- 

 closed in membramous 

 spathe,with large white 

 outer perianth Seg-/ \ 

 ments, and petals with 

 green notched honey- 

 grooves. 



No. 5. Lily-of-the^ Valley 

 (Convallaria majalis, L.) 



a t Vertical section of bell- 

 shaped flower, showing- 3 (out 

 of 6) segments of perianth, 

 the lobes bent back, and 

 included epipetalous, sta- 

 mens with ovary and simple 

 style, showing 2 seeds in a 

 cell, b, Arrow-shaped anther, 

 on short . filament, enlarged. 

 c, Berry, globose, rf, Scape 

 with ovate leaf, sheathing 

 leaf-stalk, and sheaths below, 

 with raceme of flowers, jn 

 axils of scaly bracts showing 

 flowers drooping. 



d 



section of 

 shaped flower, showing 3 (out 

 irf-6) free perianth segments, 

 3 {out of fy hypogynou.s 

 .^stamens, 3-tngled ovary and 

 ovule in cell, with thread- 

 like style^iki-plmple stigma 

 above: /', Capsule, 3-lobed, c 

 with _persiset style. c t 

 Radical leafj grooved abov^-. 

 not fistular. ovate. </, Scape, S\ 

 with bracts below, the um-/ 

 bel^of flowers, and fruits, ui 

 Various stages, on long pedi- 

 cels. 



Ma, 



% 

 .of bell- 



No. 7. Bluebell 

 i (Scilla non-stripta, 

 Hoffm. and- Link) 

 o, Vertical section 

 shaped corolla, showing re- 

 flexed lobes, epipetalous sta- 

 mens, and rounded ovary, 

 with long style, and simple 

 stigma, fi, Section of cap- 

 sule, trilocular, 3-valved, with 

 2 or more ovules in each 

 loculus. c t Concave linear 

 j lance-shaped leaves. 

 i Scape, with raceme of 

 drooping flowers with 

 purple brads below, on short 

 curved, pedicels. 











