XXVI ANALYTICAL KEY. 



Ovary one : pod 2-lobed or 2-horned at the summit. Loganieae, 169 RDBI^CEJB. 

 Ovary one, not divided nor deeply lobed, 



One-celled, simple : style and stigma 1, undivided. 88 (43) LEGUMIXOSJB. 

 One-celled, compound : styles, stigmas, or parietal placentae 2. 

 Leaves (or in Menyanthes 3 leaflets) entire. . . 341 GENTIANACE.E. 

 Leaves toothed, lobal or pinnately compound. ^ 

 Imperfectly 2-cclled by two broad parietal pla- [-26 (69) HYDUOI'IIYLLACK^:. 



centre meeting each other. . . J 



Two- to ten-celled. 



Leafless and parasitic twining plants. Cuscuta, 332 Cox VOLVU LACE x. 

 Plants with ordinary green leaves. 



Style none : corolla deeply 4- 6-parted. . . 263 AQUIFOLIACE.. 

 Style present. 



Stamens free from the corolla or nearly so. 245 (61) ERICACE^K. 



Stamens inserted on the corolla, 

 Four: corolla scarious : pod 2-celled, opening 



transversely, the top falling as a lid. 268 PLANTAGINACE.. 

 Four: ovary 2-4-celled, with one ovule in each. 299 VEUIJENACE^S. 

 Five or rarely more. 



Leaves opposite, with stipules, or a transverse 



line in their place. Gelsemium, p. 296, and 169 LOGANIE.E. 

 Leaves mostly opposite, no stipules, "j 



Leaves alternate : style 3-cleft at apex. 



^329 (70) POLEMONIACE.B. 

 Leaves alternate and opposite : an- 

 thers transversely 2-valved. 



Leaves mostly alternate : style undivided or rarely 2-cleft. 

 Ovules and seeds very numerous. 



Corolla imbricated in the bud. 281 SCKOPIIULARIACEJC. 



Corolla either plaitcd,val vate, or twisted, 



rarely imbricated, in the bud . 338 (71) SOLAXACE^E. 

 Ovules and seeds 1 or 2 in each cell. 

 Style short: fruit splitting into two or 



four seed-like nutlets. . 319 (69) BOUKAGINACE.*. 

 Style long : flowers showy : fruit a 



2-3-valvcd pod. . . 332 (70) COXVOLVUI.ACE^K 



* +* Stamens fewer than the lobes of the corolla. 

 S'amcns 4, di.lynamous. 



Ovary 2-celied ; the cells 2 -few-seeded. . . 296 (66) ACANTHACE*;. 

 Ovary 2-4-celled; the cells 1 -seeded. . . 298 (66) VERBENACE^E 



Stamens 2, rarely 3 : ovary 2-celled. 



Low herbs : corolla scarious, withering on the pod. 268 PLANTAGINACKJE. 

 Herbs (rarely shrubs) : corolla rotate, or somewhat funnelform, 



slightly irregular, deciduous. Veronica, 281 (64) SCUOPHULARIACE.*. 

 Shrubs or trees. 



