1078 RHINANTHACEAE 



panulate, 3-4 mm. long, the lobes about | as long the tube : corolla rose-purple, 1-1.5 cm. 

 long : capsules 4-5 mm. in diameter. 



In pine lands, New Jersey to Florida and Texas. Summer and fall. 



16. Gerardia Holmiana Greene. Stems 3-6 dm. tall, nearly smooth and glabrous, 

 somewhat branched. Leaves numerous ; blades filiform-linear or nearly filiform, 1.5-3 

 cm. long, acute, minutely roughened : pedicels filiform, longer than tlieir bracts : calyx- 

 tube campanulate, 2.5-3 mm. high, the lobes less than 1 mm. long, at least during anthesis : 

 corolla rose-purple, about 1.5 cm. long : capsules globose-oval, 4 mm. long. 



In sandy soil or sandy woods, Long Island to Georgia. Fall. 



17. Gerardia polyphylla Small. Stems 1-4 dm. tall, smooth and glabrous, copiously 

 branched, the branches wire-like or filiform. Leaves very numerous, sometimes incon- 

 spicuously clustered ; blades filiform or setaceous, 1-2.5 cm. long, acute, smooth : pedicels 

 filiform, 1-2 dm. long, shorter than their bracts : calyx-tube turbinate, 2-3 mm. high, the 

 lobes about } as long as the tube : corolla pink or pink-purple, less than 1 cm. long : cap- 

 sules 2-3 mm. in diameter. 



In sandy soil, Georgia to Arkansas and Texas. Summer and fall. 



18. Gerardia divaricata Chapm. Stems 2-6 dm. tall, smooth or nearly so, wire-like, 

 with wide-spreading very slender or filiform branches. Leaves few ; blades filiform or 

 nearly so, 1-3 cm. long, acute, spreading, slightly scabrous : pedicels filiform, 1.5-4 cm. 

 long, spreading, fully twice as long as the bracts : calyx-tube campanulate, 2-3 mm. high, 

 the lobes minute, about ^ as long as the tube : corolla rose-purple, about 1 cm. long : cap- 

 sules 3 mm. long. 



In low pine lands, Florida. Fall. 



19. Gerardia Gattingeri Small. Stems 2-5 dm. tall, wiry, with smooth, very slen- 

 der long branches. Leaves numerous ; blades linear-filiform or almost filiform, 1.5-3 cm. 

 long, acute, smooth or slightly roughened : pedicels filiform, 1-2.5 cm. long, less than 

 twice the length of the bracts: calyx-tube campanulate, 2.5-3.5 mm. long, the lobes 

 minute, less than 1 mm. long, at least during anthesis : corolla rose-purple, about 1 cm. 



ong : capsules 3.5-4 mm. in diameter. 



In dry soil or woods, Missouri to Tennessee, Alabama and Texas. Summer and fall. 



20. Gerardia asperula (A. Gray) Small. Stem 2-5 dm. tall, branching, with sca- 

 brous slender branches. Leaves rather few; blades very narrowly linear to linear-filiform, 

 or tliose on the branches filiform, 1-2.5 cm. long, acute, very scabrous : pedicels slender, 

 much longer than the bracts : calyx-tube campanulate, 2.5-3.5 mm. high, the lobes promi- 

 nent, fully 1 mm. long: corolla rose-purple, about 1 cm. long: capsules globular, 4-4.5 

 mm. in diameter. 



In dry soil, Michigan to Minnesota and Arkansas. Summer and fall. 



21. Gerardia strictiflora Benth. Stems 2-4 cm. tall, slightly scabrous, more or less 

 branched above. Leaves sometimes alternate above ; blades subulate or setaceous-subulate, 

 0.5-1 cm. long, or rarely slightly longer, acute, erect or nearly so : pedicels 1-1.5 cm. 

 long, surpassing their bracts : calyx-tube campanulate, 2-3 mm. high, the lobes |-} as 

 long as the tube : corolla rose-purple, about 1 cm. long : capsules about 4 mm. in diameter. 



On plains or prairies, Texas and the Indian Territory. Summer. 



22. Gerardia tenuifolia Vahl. Stems 1-6 dm. tall, smooth, commonly much 

 branched, sometimes bushy, the branches 4-angled and striped. Leaves mostly without 

 clusters in their axils ; blades linear, 1-4 cm. long, acute, smooth or nearly so : pedicels 

 filiform, shorter than their bracts : calyx-tube campanulate, 2-3 mm. high, the lobes |-^ 

 as long qs the tube : corolla rose-purple, about 1 cm. long : capsules about 4 mm. in 

 diameter. 



In dry woods and thickets, Quebec to Ontario, Georgia and Louisiana. Summer and fall. 



22. Gerardia Besseyana Britton. Stems 2-6 dm. tall, usually somewhat scabrous, 

 brandling above. Leaves rather numerous ; blades linear or narrowly linear-lanceolate, 

 1-5 cm. long, acute, manifestly scrabrous, drying dark or black : pedicels slender, much 

 shorter than their bracts : calyx-tube campanulate, 4-5 mm. high, the lobes fully 1 mm. . 

 long : corolla ro.se-purple, fully 1 cm. long : capsules 5-6 mm. in diameter. 



On dry hills and prairies, Iowa to Colorado, Ohio and Louisiana. Summer. 



24. Gerardia viridis Small. Stems 2-6 dm. tall, sharply angled, scabrous. Leaves, 

 mostly opposite ; blades linear, 1-2 cm. long, acute, revolute, scabrous along the edges 

 drying light green : pedicels rather slender, shorter than their bracts : calyx-tube turbi- 

 nate or becoming turbinate-campanulate, 3-4 mm. high, the lobes often fully i as long as 

 the tube : corolla yellowish pink, less than 1 cm. long : capsules 3-4 nun. in diameter. 



In sandy soil, Missouri to Arkansas, Texas and Louisiana. Summer and fall. 



