i6 ANALYTICAL KEY 



jt Flowers in racemes; pedicels elongated; perianth segments 4—5 mm. 

 long; stamens included; leaves glabrous. 



SMILACIKA STELLATA (p. 37). 

 h. Flowers pink. Wild Garlic, ALLIUM CANADENSE (p. 35). 



h. Flowers blue. Wild Hyacinth, CAMASSIA ESCULENTA (p. 36). 



g* Flowers epigynous. 

 h. Flowers yellow. Yellow-eyed Grass, HYPOXIS HIESTITA (p. 41). 

 h. Flowers blue or white (ZWj family). 

 i. Stigmas petal-like. Blue Flag, IBIS VEB.SICOLOB (p. 41). 



i. Stigmas thread-like. 



Blue-eyed Grass, BISYEINCHIUM ANGUSTIFOLITJM (p. 41). 



C> Stems commonly with a vascular ring between two areas without vascular 



bundles, viz., the pith and bark; leaves with but one primary vein or with 



two or more strongly divergent primary veins; smaller veins commonly 



conspicuously reticulated iDicotyledons), 



A. Perianth none, though the coroUa-like involucre may readily be mistaken 



for a perianth; stems with milky juice and crowded linear leaves. 



Cypress Spurge, EUPHORBIA CYPAEISSIAS (p. 88). 

 l/a. Perianth present; stems never with both milky juice and crowded linear 

 leaves, 

 e. Only one perianth whorl present (usually arbitrarily called the calyx, 

 except in the Umbelliferae); flowers not in dense heads (p. 17). 

 f. Flowers hypogynous (p. 17). 

 g. Pistil one. 

 h. Flowers dioecious; stems with sheathing stipules. ^ 



Field Sorrel. KUMEX ACETOSELLA (p.^'ss). 

 h. Flowers perfect; stipules wanting. 



Peppergrass, LEPIDIUM APETALUM (p. 71). 

 g. Pistils more 'than one; stipules if present not sheathing the stem 

 (Ranunculaceae) . 

 h. Flowers dioecious. 



Early Meadow Rue, THALICTEUM DIOICUM (p. 60). 

 h. Flowers perfect. 

 i. Ovaries with but one ovule; involucre present. 

 j. Leaves compound. 

 k. Roots tuberous; flowers several in an umbel. 



Rue Anemone, ANEMONELLA THALICTEOIDES (p. 61). 

 k* Roots filamentous; flower single. 



Wood Anemone, ANEMONE QUINftUEFOLIA (p. 6z). 

 3. Leaves simple. 

 k. Flowers appearing before the leaves of the season (old leaves 

 persisting over winter); leaves three-lobed (Hepaticd). 

 1. Leaf lobes rounded. HEPATICA TRILOBA (p. 61). 



1. Leaf lobes pointed. HEPATICA ACUTILOBA (p. 61). 



k. Flowers appearing after the leaves; leaves cleft. 



ANEMONE CANADENSIS (p. 62). 

 i. Ovaries with two or more ovules; involucre wanting, 

 j. Flowers yellow; leaves simple. 



Marsh Marigold, CALTHA PALUSTEIS (p. 62). 

 i. Flowers white, 

 k. Leaves decompound. ISOPYEUM BITEENATUM (p. 62). 



k. Leaves tri-foliolate. If the small club-shaped petals are overlooked, 

 there may be sought here 



