DIDVNAMIA AXG10SPEHMIA 371 



302. BUCHNERA. L. j\ m utt. Gen. 531. 

 [In honor of Jolm Gottfried Duchner ; a German Botanist.] 



Calyx tubular, 5-toothed. Corolla tubular ; tube long, slender ; limb 

 flat, nearly equally 5-lobed, lobes cuncatc-obovatc, emar^inate. Sta* 

 mens short, included. Capsule ovoid-oblong, obtuse, 2-cellcd, 2-valved, 

 opening at apex. Seeds minute, oblong, striate-sulcate. 



Herbaceous: leaves opposite; flowers opposite, in a terminal subcorymbose 

 spike. Nat. Ord. 211. Lindl. Scrophularinbje. 



1. B. amehicana, L. Leaves ovate-lanceolate, denticulate, scabrous, 

 sessile ; spike elongating, with the flowers rather distant Beck, Bot. 

 p. 263. 

 American Buchneha. 



Plant hairy and scabrous, becoming greyish-black In drying. Root perennial. 

 Stem 1 to 2 feet high, slender, terete, mostly simple, appearing somewhat virgate 

 at summit, from its small distant appressed leaves. Leaves I to near 2 inches 

 long, and 1 fourth to 3 fourths of an inch wide, very scabrous (the hairs with indu- 

 rated enlarged bases, as in the Boraginca); upper leaves slender and acute, the 

 lower ones often ovate, or ovate-oblong, and obtuse. Flmcers opposite, sessile,1n 

 the axils of small ovate-lanceolate ciliatc bract-like leaves, in a terminal sgike 

 which is at first short and sub-corymbose, finally elongated to 3 or 4 inches ; bracts 

 lance-linear, lateral. Calyx tubular, nerved, hairy, at first nearly cylindrical, 

 finally tumid at base, or ovoid, slightly curved; teeth short, ovate, acuminate. 

 Corolla deep purple ; tube twice as long as the calyx, a little curved, hairy inter- 

 nally and externally; the 2 upper lobes of the limb rather narrower than the 

 others. Capsule ovoid-oblong, somewhat oblique and gibbous at base ; the apex 

 obtuse, compressed, and margined ; valves sulcate on the back, over the dissepi- 

 ment which arises in the middle. 



Hab. Meadows, and moist Serpentine banks : not common. Fl. Aug. Fr. Octo. 



Obs. This was first observed along the Marlborough Street road, near Hay^s* 

 Bridge ; and it has since been found in considerable quantity on the moist sterile 

 banks of Serpentine rock, in Willistown. The flowers, at a little distance, re- 

 semble those of Phlox. It is the only species known in the U. States- 



303. PHRYMA.Z. Nutt. Gen. 620. 

 [A name of unknown derivation.] 



Calyx tubular, bilabiate ; upper lip longer, trifid ; lower one bidentate. 

 Corolla tubular, bilabiate ; upper lip short, eraargiriate ; lower lip much 

 longer, 3-lobed. Capsule thin and evanescent Seed solitary. 



Herbaceous : leavos opposite ; flowers opposite, tribracteate, in slender terminal 

 spikes ; fruit reflexed. Nat. Ord. 220. Lindl Vbrbenaceje. 



I. P. leptostachya, L. Leaves ovate, acute, coarsely and unequ al- 

 ly crcnatc-serratc, petiolate. Beck, Bot. p. 284. 



Slender-spiked Phtrma. Vulgo— Lop-seed. 



Root perennial. Stem 2 to 3 feet high, obtusely quadrangular, pubescent, with 

 a few opposite axillary virgate branches above. Leaves 3 to 6 inches long, and an 

 inch and half to 3 inches wide, thinnish, pubescent, rounded at base, or abruptly 

 narrowed to a petiole half an inch to near 2 inches in length; the small leaves on 

 the branches sessile, or subsessile. Flowers opposite, stibsessile, in slender 

 simple spikes 3 to 6 or 8 inches in length, terminating the virgate branches ; each 





