■Drosera.] xliv. droskuacE/E, 455 



Leaves semicircular or almost reuiform, cuneate at the base, ou a 

 long petiole 11. L. zonaria. 



Leaves orbicular obovate or obloug, tapering into a very short pe- 

 tiole. 

 PcdunclcSj usually several, all l-flowered. 



Leaves small, thick, oblong, not half as long as thepeJuncle . 18. B. hulbosa. 

 Leaves obovate, peuniveined, nearly as long as or longer than 



the peduncle 19- ^- ro^^l^t<i^ . 



Leaves obovate, several-nerved, nearly as long as the peduncle 20. D. Wkif taken. 

 Peduncles' several, filiform, 2- or 3-ilo\vcred. Leaves obovate, 



penuiveined ' .... 21. i). macrophjiia. 



Peduncles solitary, bearing a cyme of many flowers. 



Leaves all reduced to lanceolate membranous scales .... 22. -D. squamosa. 



Leaves broadly obovate or orbicular 23. D. erythrorhiza. 



Rootstock bearing a rosette of leaves, and either leafy flowering-stems, 

 or leafless scapes and leafy side-hrauches. Leaves not peltate. 

 Stem-leaves opposite or whorkd. Central scape usually leafless, 



bearing a cyme of several flowers. 

 Leaves of the primary rosette scarcely petiolate, above \ in. long. , .- 



Scape (with the cvme) 3 to C in. long or more . . . . . 24. iJ. stolomjera. 

 Leaves of the primary rosette distinctly petiolate, orbicular, 



under 2 lines diameter. Scape (with the cyme) 2 to 4 in. . 25. V. humilis. 



Stem-leaves alternate. 

 Central scape lc:^css, 1- or 2-flo.ercd, \ to f in. long. Leafy 



Side-branches short, usually baireu %fi n iJ h^llnla 



Stem leafy, ^vith a many-flowered terminal cyme . . • • • '^Z- ^-Ji^ioeuaia. 

 Rootstock terminating in a single or branched leafy flowenng-stem. 

 Lower leaves reduced to short liuear-subulate or Imcar-lanceolate 

 scales or (in the first 2 species) rosulate and not peltate, btem- 

 leaves peltate, ou filiform petioles, often clustered m the axi s. 

 Stem-leaves lunar-poltate, i.e. broadly crescent-shaped or at least 



with 2 prominent angles. _ 



Lower leaves, when present, rosulate, not peltate. Kacemes 



simple, the pedicels all short. ^q n aiiriculata 



Sepals entire, glabrous. Seeds narrow-liucar - , • • Ja n.iellala 

 Sepals toothed%iUous or nearly glabrous. Seeds ovoid . %^,n.peUata. 



Lower leaves not rosulate, all reduced to small narrow acute 

 scales. Racemes branched or the lower pedicels long 

 Flowers large, red or yellow, few, in a short loose cyme, bccas ^^^ ^ ^^^^. .^ 



linear : ' clo^a 



Flowers small, white, in a large divaricate panicle, ^^eds ^^^ j)nlgantea, 



ovale ,','** 'r,^f 



Stem-leaves orbicular-peltate, without angles, the lower ones not 



rosul^e, ofteu reduced to narrow acute scales. ^^ ^^ heterofiylU, 



Flowers solitary or very few, mostly 8-mcrou3 . ■ • * • ' 

 Flowers few, small, iu a simple raceme lovver pedicels short. 



Stipules often to the upper leaves.. Styles not much dividtd . 41. v. jsa 

 Flowers 5-mcrou3, in cymes or loose racemes, ^"puies n . 



Styles not much divided. Flowers very small, m many- ^^ ^ .^^riantha. 



flowered cymes ' fi'ijf 'mi' 



Styles divided nearly to the base into very numerous hiitorm, 



mostly simple branches. Calvx-segments entire iZ, D. pallida. 



Flowers many in the cyme, white- '^aiyx i*^*? t . *„^tv,p,i 

 Flowers in cymes, red. Calyx-segments ediatc-tooiueu, ^^ ^^ ^^;^,7/^,;^. 



villous or nearly glabrous • * * e'xrpA 



Flowers few. in shoPt, loose, simple or '"f c>' ^f J°f ^^ 



racemes. Calyx-segments ciliate-toothcd, gwui'J ^ ^ ^,^ D.fiUcuidu. 



slightly villous 



