116 The Ohio Journal of Science [Vol. XVII, No. 4, 



2. Hepatica acutiloba DC. Sharplobed Liver-leaf. Differs 

 from the preceding species only in having the stem leaves and 

 the lobes of the basal leaves acute or pointed. General. 



Clematis L. Clematis. 



Woody vines, climbing by means of petioles twisted about 

 the support. Leaves opposite, compound; 3 ovate, stalked 

 leaflets; or simple, 3-lobed. Flowers in loose many-flowered, 

 cymose, panicles, nearly diecious; sepals 4-5 spreading, petaloid; 

 petals none; stamens numerous, spreading; carpels numerous, 

 long-styled. Achenes with long plume-like, persistent style. 



1. Clematis virginiana L. Virginia Virgin's-bower. A long 

 vine, found on fences and bushes. Leaves glabrous. Flowers 

 white. General. 



Viorna Reichb. Leather-flower. 



Woody vines or erect herbs, with opposite simple or com- 

 pound leaves with the petiole prolonged into a tendril. Flowers 

 solitary, bell-shaped; stamens and carpels numerous; styles 

 plumose. Achenes with long persistent style. 



1. Viorna viorna (L.) Small. Leather- flower. A vine 

 growing to the height of 10 ft. or more. Leaves mostly com- 

 pound, with petiole prolonged and tendril-like; leaflets ovate, 

 entire, often trifoliate. Calyx purple, with very thick sepals; 

 petals none. Anthers long and slender. Southern half of 

 State; also in Auglaize County. 



Caltha (Rupp.) L. Marsh-marigold. 



Succulent perennials with alternate reniform, crenate or 

 entire leaves and conspicuous solitary yellow, white or pink 

 flowers. Sepals 5-9, petaloid, stamens and carpels numerous. 

 Follicles. 



1. Caltha palustris L. Marsh-marigold. Stems hollow, 

 erect, 6-15 in. tall. Leaves crenate, 3 in. broad or less. Flowers 

 bright yellow, waxy, }'2~1 ii^- broad. In swamps. General. 



Hydrastis Ellis. Golden-seal. 

 Erect perennial herbs with a thick, knotted, yellow root- 

 stock. Stem pubescent with 2 alternate palmately lobed 

 leaves near the summit. Flowers small, solitary, greenish- 

 white; sepals deciduous; petals none; stamens and carpels 

 numerous. Fruit a crimson aggregate berry. 



