SCROrilULAlUACE^E. (riGWORT FAMILY.) 297 



1. B. elongata, Swartz. Rough with short rigid hairs; stem mostly 

 simple ; leaves entire or sligluly tootlicd, 1-nervcd, or obscurely 3-ncrvcd ; 

 the lowest ohovatc or obovaic-oblong, obtuse, the lower stem-leaves nanowly 

 lanceolate; the uppermost distant, acute; spikes interrupted, long-pediinclcd; 

 flowers oi)posite or alternate. — Low pine barrens, Florida, Georgia, and west- 

 ward. July and Aug. —Stem l°-2° high. Corolla 4"--5'' long. 



2. B. Americana, L. Very rough, with bristly hairs ; stem often branch- 

 ing above; leaves prominently 3-ncrved, mostly toothed; the lower ones oblong, 

 obtuse, the others lanceolate, acute; calyx-teetii acuminate. — Low pine barrens, 

 Florida to Mississippi, aud northward. July and Aug. — Stem 2° - 3° high. 

 Corolla C- 7' long. 



16. SEYMERIA, Pursh. 



Calyx 5-partcd. Corolla bell-sliapcd, 5-lobcd, the lobes oblong. Stamens 4, 

 equal, tlie filaments woolly : anthers oblong, opening at tlic apex, awnless. 

 Style simple, obtuse. Capsule ovate, flattened above, loculicidally 2-valvcd. 

 Seeds numerous, covered by the loose hyaline testa. — Chiefly annuals. Stems 

 erect, branching. Leaves opposite, jiinnately divided. Flowers yellow, in ter- 

 minal leafy-bracted racemes. 



1. S. tenuifolia, Pursb. Smooth or nearly so; stem with elongated 

 erect-spreading branches ; leaves pinnate, the entire or lobed divisions lilifbrm; 

 capsule smootli, acute at the base, shorter tlian the pedicel. — Low jiinc barrens, 

 Florida to North Carolina, and westward. Aug. and Sept. — Stem 2° -4° 

 high. 



2. S. peetinata, Pursh. Viscid-pubescent; stem with ascending branches; 

 leaves pinnatiiid, the entire obtuse divisions oblong-linear; capsule hairy, obtuse 

 at the base, as long as the pedicel. — Dry sandy soil, Florida to South Carolina, 

 and westward July - Sept. — Stem G' - 18' bigh. 



17. MACRANTHERA, Torr. 



Calyx 5-cleft, the lobes elongated. Corolla cylindrical, .5-toothed ; the teeth 

 reflexed. Stamens 4, equal, long-exserted, woolly : anthers large, oblong, ap- 

 proximate. Style simple, filiform, elongated : stigma minute, flat. Capsule 

 ovate, loculicidally 2-valved, many-seeded. — A tall biennial, with pinnatifid 

 opposite leaves, and showy orange-colored flowers, in terminal leafy racemes. 



1. M. fuchsioides, Torr. Smoothish ; stem branching, 4-sided ; earliest 

 leaves ovale-olilong, entire ; those of the stem lyratc-pinnatifid, with the lobes 

 denticulate ; the uppermost toothed-serrate ; pedicels slender, recurved, the 

 upper ones longer than the floral leaves; flowers erect: calyx-lobes lanceolate, 

 denticulate, rather shorter than the corolla. — Var. Lkcoxtei has the shorter 

 and narrower lobes of the calyx entire. (M. Lecontei, Torr.) — Marshy banks 

 of pine-barren streams, Georgia, Florida, and westward. Sept. and Oct. — Stem 

 SO- 5° high. Earliest leaves 6'- 8' long; those of the stem 2' -4' long. Co- 

 rolla 9"- 12" long. — The plant turns black in drying. 



