SCROPHULARIACEAE 191 



vate, entire at summit. Capsule ovoid-oblong. Roughish-hairy 

 perennial*, turning greyish-black in drying: leaves opposite, or the 

 upper ones alternate; flowers opposite, in a terminal bracteate spike, 

 with lateral bractlets. 



I. 15. Amerir.iiisi, L. Stem simple; lower leaves obovate- 

 oblong, the others oblong and lanceolate, denticulate, sessile ; spike 

 elongating, interrupted. 



AMERICAN BUCHNERA. 



Stem 1 to 2 feet high, slender, terete, virgate at summit. Leaves 1 to 2 Inches 

 long, scabrous with hairs enlarged at base. Spike finally 2 to 4 inches in length ; 

 liruds ovate-lanceolate, ciliate; corolla deep purple, the tube twice as long as the 

 calyx, hairy. Capside somewhat oblique and gibbous at base, compressed at apex. 



II. ib. Meadows, and moist sterile banks : not common. Fl. Aug. Fr. Octo. 



GERARD 14, L. 



[Dedicated to John Gerard; an early English Botanist.] 



Calyx campanulate, 5-toothed, or 5-cleft. Corolla sub-campanulate, 

 or somewhat funnel-form, unequally 5-lobed. Stamens didynamous, 

 hairy, included; anthers 2-celled; cells parallel, often pointed at 

 base. Capsule ovoid, acute. Leaves mostly opposite, entire, or 

 pinnatifid; flowers large, axillary, often racemose, or spiked, purple, 

 or yellow. 



1. ANNUALS: flowers purple ; anthers pointless; leaves sm#e. 

 f Calyx-teeth sliort ; leaves narrow, entire. 



1 . G. tenuif olia, Vahl. Smoothish, slender and bushy; leaves 

 linear ; peduncles filiform, longer than the flowers. 

 SLENDER-LEAVED GERARDIA. 



Stem. 9 tg 12 or 15 inches high. Leaves % f an * ncn to 1% inches long, very 

 narrow, somewhat scabrous on the upper surface. Calyx with minute teeth. Co- 

 rnlht palish purple. 

 Hal. Woodlands, and old fields: common. FL Aug. Fr. Octo. 



-2. Cr. purpftrea, L. lloughish; branches spreading, rigid; 

 leaves lance-linear; peduncles subclavate, shorter than the flowers. 

 PURPLE GERARDIA. 



to 2 feet high, somewhat 4-angled. Leaves % of an inch to \% inches 

 long, very scabrous on the upper surface. Culyx with subulate teeth. Corolla 

 deep purple; lobes villose-ciliate. 

 ///>. Swampy, low grounds : frequent. FL Aug. Fr. Octo. 



ft Calyx 5-deft; leaves broadi&h, auriculate-lobed at base. 



3. G. ciiiriciiB.'il&i, MX. Rough-hairy; stem nearly simple; 



leaves ovate-lanceolate, the upper ones with lance-oblong lobes at 



base. 



AURICULATE GERARDIA. 



Xicm 9 to 18 inches high, terete, retrorsely hirsute. L".avts an inch to 1% inches 

 long, scabrous on both sides. Flowers axillary, forming an interrupted leafy spike. 

 Ciilyx-xegments ovate-lanceolate. Corolla purple (rarely milk-white) ; lobes ciliate. 

 Hal. Fields, and low grounds; W. Chester: rare. FL Aug. Fr. Octo. 



Obs. This species is remarkable for making a transient appear- 

 ance, here, at long intervals. It was first discovered in 1810; neit 



