1076 RHINANTHACEAE 
Leaf-blades filiform : stem-leaves without clusters of smaller 
leaves in their axils. 8. G. Plukenetii. 
Leaf-blades linear-spatulate: stem-leaves with conspicuous 
clusters of leaves in their axils. 9. G. Georgiana. 
Capsules 5-7 mm. in diameter: calyx-lobes mostly 1.5-2 mm. 
long. 10. G. paupercula. 
Blades of stem-leaves subulate. 11. G. microphylla, 
Calyx-lobes blunt: plant succulent. 12. G. maritima. 
Pedicel much longer than the calyx and capsule. 
Leaf-blades broadened upward. 18. G. Skinneriana. 
Leaf-blades not broadened upward. 
Leaf-blades mainly filiform or subulate. 
ipis ae i or most of them furnished with clusters of leaves in their 
axils. 
Leaves mostly alternate. 14. G. filifolia. 
Leaves mostly opposite. 
Stem-leaves, or most of them, with conspicuous clusters in their 
axils. 15. G. setacea. 
Stem-leaves with inconspicuous clusters in their axils. ; 
Pedicels longer than the bracts: corollas over 1 em. long. 16. G. Holmiana. 
Pedicels shorter than the bracts: corollas less than 1 em. long. 17. G. polyphylla. 
Petu earen, or most of them, without clusters of smaller leaves in their 
axils. 
Bracts surpassing the pedicels. 17. G. polyphylla. 
Bracts shorter than the pedicels. 
Calyx-lobes less than 1 mm. long. 
Pedicels over twice as long as the bracts. 18. G. divaricata. 
Pedicels less than twice as long as the bracts. 19. G. Gattingeri. 
Calyx-lobes fully 1 mm. long. 
Leaves of the branches filiform, not rigid. 20. G. asperula. 
Leaves of the branches subulate, rigid. 21. G. strictiflora. 
Leaf-blades mainly linear, their margins sometimes slightly revolute. Mor 
Calyx-lobes less than 1 mm. long: leaf-blades smooth or nearly so. 22. G. tenuifolia. 
Calyx-lobes fully 1 mm. long: leaf-blades scabrous. 
Corolla rose-purple, fully 1 cm. long. 23. G. Besseyana. 
Corolla yellowish pink, less than 1 cm. long. 24. G. viridis. 
1. Gerardia linifòlia Nutt. Stems 5-9 dm. tall, smooth and glabrous, sparingly and 
virgately branched. Leaf-blades thickish, linear, 1-5 cm. long, rarely over 2 mm. broad, 
acute: pedicel longer than the calyx, enlarged at the top: calyx-tube 4-5 mm. high, the 
lobes acute, much less than 1 mm. long: corolla rose-purple, 2~2.5 cm. long: capsules 
5-7 mm. in diameter. 
In low pine lands, Delaware to Florida. Fall. 
2. Gerardia aphylla Nutt. Stems 2-9 dm. tall, nearly smooth, simple or usually 
sparingly branched above, 4-angled, nearly naked. Leaves various, those near the base of 
the stem with oval or oblong leathery blades 5-10 mm. long and fugaceous ; those higher 
up on the stem and branches reduced to scattered subulate appressed scales: pedicels 
usually 1-3 mm. long: bracts similar to the upper leaves: calyx-tube campanulate, 2-2.5 
mm. high, the lobes minute: corolla rose-purple, 1-1.5 cm. long: capsules subglobose, 
3-3.5 mm. in diameter. 
In low pine lands, North Carolina to Florida and Louisiana. Fall. 
3. Gerardia filicaülis Chapm. Stems 2-5 dm. tall, smooth, glaucescent, p: 
much branched, apparently leafless. Leaves reduced to minute subulate scales : pedice 
5-10 mm. long, club-shaped : calyx-tube campanulate, 2.5 mm. high, the teeth minute, 
rather triangular: corolla rose-purple, 6-10 mm. long, delicate: capsules about 4 mm. in 
diameter. 
In low pine lands, Florida to Louisiana. Fall. 
4. Gerardia heterophylla Nutt. Stems 1-6 dm. tall, smooth or nearly so, hrima 
ing above. Leaf-blades linear or narrowly linear-lanceolate below, 1-5 cm. long, raray 
4 mm. broad, acute, erect or erect-ascending, somewhat scabrous along the margins: $ h 
cel shorter than the calyx, enlarged upward: calyx-tube campanulate, 3-4 mm. e 
the lobes lanceolate or subulate-lanceolate, about as long as the tube : corolla rose-purp/e, 
about 2 cm. long: capsules 5-6 mm. long. 
On prairies, Arkansas and the Indian Territory to Texas. Summer and fall. 
5. Gerardia áspera Dougl. Stems 1-6 dm. tall, more or less scabrous, leni 
above. Leaf-blades linear, mostly less than 1.5 mm. wide, 1-3 cm. long, acute es lobes 
mostly as long as the calyx-tube or longer: calyx-tube 5-7 mm. long, turbinate, the ut 
deltoid or triangular-lanceolate, about 4 as long as the tube: corolla rose-purple, à 
em. long: capsules elliptic or ovoid-elliptic, 8-10 mm. long. 
On plains or prairies, Indiana to South Dakota and Arkansas. Summer and fall. 
ingl 
_ 6. Gerardia fasciculata Ell. Stems 5-12 dm. tall, often uberulent a ica jn 
hispidulous, branching. Leaves numerous, the larger ones with clusters of smaite 
