APETAUB. 11 



Leaves unequally pinnatifid: calyx-tube in fertile flowers 3-toothed Datisca, 64 



Leaves glaucous: white flowers in clustered umbels Comandra. 



Leaves small, crenate: capsule axillary, obcordate Chrysosplenium, 50 



Leaves opposite. Calyx salverform: capsule 1 -seeded. {See Flora).. Nyctaginacese. 



Calyx 4-lobed: stamens 4: flowers axillary Ludwigia, 60 



Calyx (corolla) tubular to rotate Caprif oliaceaB, 68 



Leaves in whorls. Calyx 4-lobed or entire. Aquatic Halorageee, 59 



B. OVASY SUPEBIOB (free from tho calyx). 



o. Herbs: leaves alternate, radical or in a whorl 

 Sepals petaloid, persistent; akeno 1, 3-sided or flat. (See Flora). . . .Polygonaceae. 



persistent: fleshy root-parasite, waxy- white bracts Allotropa, 74 



deciduous: carpels several or many . . . ; Raminculacese, 14 



Sepals green: racemes close: capsules flat, 1-2-celled Cruciferse, 1 9 



minute flowers opposite the leaves Alchemilla, 52 



Sepals none: dense oblong spike with petaloid involucre. (See Flora). . . .Anemopsis, 



spike naked: radical leaf 3-foliolate Achlys, 17 



6. Herbs: leaves opposite entire: capsule 1-celled except in tlie last. 



Stems square: calyx 4-toothed, with smaller teeth between, axillary Ammania, 59 



Involucre calyx-lilce or surrounding a head of flowers. (Seo Flora). .Nyctaginacege. 



Flowers small, axillary, sessile white: stigma 1. Glaux, 76 



Flowers green, terminal: stigmas 3 to 5 Caryopliyllacese, 27 



Flowers axillary: capsulo 3-5-celled. Ficoideae, 65 



c. Shrubs or trees: leaves alternate f entire (except in the last): flowers perfect. 



Calyx tubular, bearing the stamens: akeno plumose-tailed Cercocarpus, 60 



Calyx 6-parted, yellowish: leaves very aromatic. (See Flora) Lauraceae. 



Calyx 4-5-cleft, greenish: fruit berry-like, 2-4-seeded Brhanmace, 37 



Calyx 3-4-lobed, yellow: stamens 6 to 12, exserted .Dirca palustris. 



Calyx 5 -cleft, large, yellow: stamens 5, united Sterculiacese, 35 



d. Trees or woody climbers with opposite pinnate leaves. 



Trees: flowers dioecious: winged fruit in drooping panicles Oleacese, 77 



flowers perfect : fruit 2- winged, 2- see Jed Sapindaceas, 38 



Climbers: sepals 4: stamens and pistils many: akenea tailed. Clematis, 14 



. Dioecious shrubs with drooping silky gray amenta Oarryo, 66 



