A PETAL JE. II 



Leaves aneqaally pinnatifid: calyx -tube in fertile flowera 3'toothed Datisea, 64 



Leaves glaucoTiB: white flowera in clustered umbels Comandra, 



Leaves small, crenate: capsule axillary, obcordate ChrysospUnium, dd 



Leaves opposite. Calyx salverform: capsule 1 -seeded. (See Flora).. NyctaginaceaB. 



Calyx 4-lobed: stamens 4: flowers axillary Ludioigia^ 60 



Calyx (corolla) tubular to rotate CaprifoliaceoB, 66 



Leares in whorls. Calyx 4-lobed or entire. Aquatic Haloragese, C9 



B. OVABY SUPEBIOB (free from the calyx). 



a. Herb»: leaves cdtemcUe, radical or in a tohorL 



Sepals petaloid* persistent; akene 1, S-sided or 6at. (See Flora). , . .Polygonacesd. 



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



deciduous: carpels several or many HanunculacesB, 14 



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



minute flowers opposite the leaves Alchemilla^ 52 



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



spike naked: radical leaf 3-foliolate Achlys, 17 



h. Herbs: leaves opposite entire: capsule 1-celled except in the last. 



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



Lavolucre calyx-like or surrounding a head of flowers. (See Flora). .NyctaginacesB. 



Flowers small, axillary, sessile white: stigma 1 Olavx^ 76 



Flowera green, terminal : stigmas 3 to 5 Caryophy Uaceae, 27 



Flowers axillary: capsule 3-5-celled Ficoideaa, 6r> 



c. Shrubs or trees: leaves altematef entire {except in the last): flavors perfect. 



Calyx tubular, bearing the stamens: akene plumose-tailed Cercocarjnis, 50 



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



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



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



Calyx o-clcft, large, yellow: stamens 5, united SterculiacesB, 35 



d. Trees or woody climbers with opposite pinnate leaves. 



Trees: flowera dioecious: winged fruit in drooping panicles. OleaceaB, 77 



flowers perfect : fruit 2- winged, 2-seeded SapindacesB, 38 



Climbers: sepals 4: stamens and pistils many: akenes tailed Clematis^ 14 



c Dioecious shrubs with drooping silky gray aments Oarrya^ 60 



