Tennessee Flora. ■ 105 



*P. Gattingeri Heller. Petalostemon decumbens Nutt. 

 Frequent in the cedar glades of M. Tenn. A white variety is 

 found at Lavergne, Rutherford County. June, July. 



INDIGOFERA L. 



Indigofera tinctoria I>. Indigo. Formerly cultivated for 

 home use by country people for dyeing homespun goods. E. 

 Tenn. July, August. 



CRACCA L. (Thephrosia Pers.) 



Cracca Virginiana L. Thephrosia Virginiana Pers. Cat- 

 gut. Dry, siliceous soils. Common in the oak barrens. O. S. 

 June, July. 



C. spicata (Walt.) Kuntze. Same range with the former. 

 O. S. June-August. 



KRAUNHIA Raf. (Wistaria Nutt.) 



Kraunhia frutescens (L.) Greene. Wistaria frutescens Poir. 

 Mts. at Cowan. May, June. 



fK. macrostachys Small. Banks of Cumberland River, be- 

 low Nashville. May. 



ROBINIA L. 



Robinia Pseudacacia L. Yellow or black locust. Tree at- 

 taining a height of 80 feet. O. S. May, June. 



R. viscosa Vent. Clammy locust. Grand View. E. Tenn. 

 Miss Hattie R. Stratton. Knoxville. A. Ruth. June. 



*P. Gattingei-i Heller n. sp. vide Bull. Torr. Bot. Club, Vol. XXIII., 

 No. 4, p. 121; April 11. 1896. Perennial; stems, a foot in length or 

 more, usually branching from the base, sometimes decumbent, spar- 

 ingly glandular and pubescent, sometimes villous on the peduncles; 

 leaflets, 2 or 3 pairs, narrowly linear or oblong, from 1/0 to % of an inch 

 long, one line in width or less, dull and glandular on the upper side, 

 light green beneath, the midvein prominent; spikes on rather short 

 peduncles, cylindrical, loose, especially when old, from 1 to 2i/o inches 

 long; bracts, slightly longer than the calyx, oval-lanceolate, slender- 

 pointed, glandular, pubescent; calyx, pubescent, with spreading hairs, 

 the lanceolate lobes slightly shorter than the tube and more pubescent; 

 petals, deep rose purple; ovary and base of style, pubescent. 



-f-K. macrostachys Small. Wistaria frutescens var. macrostachys 

 T. C. Gray. A vine sometimes from 20 to 25 feet long, stem becoming 

 2 inches thick, branching; leaves, 4-8 inches long; leaflets, usually 9, 

 ovate to elliptic-lanceolate, 1% inches long, acuminate or acute, rounded 

 or cordate at the base; racemes, 8-12 inches long, loosely flowered, 

 drooping; rachis and pedicels, densely hirsute and glandular; calyx, 

 pubescent, like the pedicels; the tube, companulate; the segments, 

 lanceolate, lateral ones about as long as the tube, lower ones longer; 

 corolla lilac, purple or light blue; standard, with blade 7 lines broad, 

 decurrent on the claw; pods, 2-4 inches long, constricted between the 

 black, lustrous seeds. (Illustrated Flora; Appendix, page 517.) 



