I 



ANALYTICAL KEY. 29 



5, and occasionally more : capsule 2-celled. Page 



Ovules numerous in each cell. 

 Estivation imbricated : filaments woolly. .... Yerbascum, 573 



^Estivation wrinkled, valvate, twisted or induplicate, rarely 



imbricated. Solanace^, 565 



Ovules and seeds 1-3 in each cell. 



Style short : drupe 4-celled, or nutlets 2-4 Borraginej!:, 529 



Style long : flowers showy : capsule 2 4-valved. . . Convulvulace.e, 556 

 f t Stamens fewer than corolla lobes. 

 Stamens 4, didynamous. 



Ovary 2-celled : cells 00 -seeded Celsia, 581 



Ovary 2-4-celled : cells 1-seeded. Verbenaceje, 609 



Stamens 2, rarely 3 : ovary 2-celled. 

 Herbs or small shrubs : corolla rotate, slightly bilabiate . . VERONicEiE, 572 



Shrubs or trees. 

 Corolla-lobes 4-6, valvate in bud : seeds pendulous .... Oleaceje, 519 



Corolla-lobes 5-8, involute in bud: seeds basilar, erect . . . Jasmines, 518 



Division III. APETALE (MONOCHLAMTDE), sometimes destitute of both kinds of 

 floral envelopes (ACHLAMYDJE) 



A. Flowers inserted on the lining of a hollow torus. 



Tree, with palmate leaves and milky juice : fruit a fig Ficus, 729 



B. Flowers not inserted in a hollow torus, nor on aments. 

 1 . Ovary or its cells cc-ovuled. 

 Ovary adherent to calyx. 

 Stamens 9-11 : herbs with pinnate leaves and racemed flowers . . , Datisca, 325 

 Anthers 6: non-parasitic herbs, with lurid, curved flowers . Aristolochiaceje, 706 

 Anthers numerous : parasites : flowers white or yellow . . . CyxiNACEaj, 705 

 Ovary free, but sometimes enclosed in calyx. 



Flowers subtended by 2, scarious bracteoles Trianthema, 327 



Flowers destitute of scaly or colored bracts. 

 Herbs. 



With fleshy leaves : flowers solitary in axils Aizoon, 327 



"With awl-shaped leaves : flowers solitary Sagina, 148 



With awl-shaped leaves : flowers capitate . .... Queria, 152 



With round to obovate, spathulate or elliptical leaves . , , Mollugine,e, 164 



Desert shrubs : fruit a 3-celled, berry-like capsule ... Ochradenus, 111 



Trees : flowers dioecious, racemed on year-old branches .. . . Ceratonia, 297 



2, Ovary or its cells 1-4-ovuled. 



* Pistils more than 1, separate or nearly so. 



Stamens inserted on the calyx : leaves stipulate Alchemilla, 306 



Stamens inserted on the torus : leaves exstipulate .... Kanunculace^, 34 



* * Pistil I , simple or compound. 

 Ovary inferior in perfect or pistillate flowers. 



Aquatic herbs with opposite, dentate leaves Callitriche, 318 



Herbs with tender stems and leaves : stipulate .... CYNOcRAMBEJi:, 733 



Annual, dioecious herbs : exstipulate Spinacia, C80 



Herbaceous parasites : flow^s spiked, polygamous. . . Balanophoracej!, 714 



Woody parasites Loranthace^, 71 



Shrubs or herbs, exstipulate SANXALACEiE, 7l2 



Ovary adherent to calyx by its lower part only. 



Exstipulate Chenopodiaceje, 676 



Stipulate ,.,.,., Sclerocephalus, 162 



Qvary free, but included in calyx-tube. 

 Shrubs or small trees with scurfy leaves ,,.,,, Eleagnaceje, 710 

 Herbs : calyx colored : leaves simple, opposite . . , , Nyctagineje, 672 



Small herbs with green calyx ••.,,,,.. Aizoon, 327 



Ovary free from calyx : calyx sometimes 0, 

 Stipules sheathing. 



Monoecious shrubs or small trees : leaves palmate Eicinus, 727 



Herbs or shrubs: flowers peifect : fruit a nutlet . . . PoLVGONACEiE, 695 



