258 PENTANDRIA. MONOGYNIA. tiols, 



spathulate, smooth, subdentate ; snperiorones lanceolate, en- 

 tire; stipules large, pinnatifid. M u hi. Cat. p. 25. V. feico- 

 lo):P nrsh Fl. I. p. 175. Schw. Viol. 1. c, p. 78. Nut t. 

 Gm. I. p. 151. Roem. ^ Sch lilt. V.ip. 3B3. \. arvensis 

 Elliott Sk. I. p. 302. V. arvensis $. bicolor H off. Fl, 

 <!?em. II. p. 170? 



Roo( annual. Stem acutely triquetrous, nearly smooth, erect, 

 2 — 3 inches high. Radical leaves on distinct petioles, often a 

 little cordate at the base ; cauline leaves lanceolate or oblong. 

 Stifiules very large in proportion to the plant, pectinately pin- 

 natifid ; the terminal segments longer. Peduncles quadrangu- 

 lar, longer than the leaves. Flower small, bluish-white, 

 ''sometimes apetalous) ; lateral fietals bearded ; lowest one di- 

 lated, with 5 blue striae. Segments of the calyx ovate-lanceo- 

 late, ciliate, auriculate at the base. Stigma turbinate, urceo- 

 late, pubescent at the sides. Ca/isule subglobose, smooth. 

 Hab. On dry rocky hills. Bergen, New-Jersey. In Pennsyl- 

 vania. Mu hlenber g. Near Bethlehem, Pennsylvania^ 

 Schwcinitz. May. 



This species, though rare, appears to be widely dispersed 

 over this country. It occurs in the Atlantic States from New- 

 York to South-Carolina. I have also received specimens col- 

 lected on the Missouri, near St. Louis. As P ur a h remarks, 

 it is nearly allied to V. tricolor^ but it is nearer, I think, to V. 

 arvensis. There appears to be little doubt of its being native. 

 21. V. concolor F o s t. : stem straight, erect; leaves 

 cuneate-lanceolate ; stipules subulate, entire; peduncles very 

 short, 2 — 3-flovFerecI ; petals connivent, emarginate ; spur 0. 

 F. Foster, in Lin. Trans. VI. p. 309. t. 28. Schw. Viol. 

 1. c. p. 79. Pursh Fl. I. p. 175.. £ / liott Sk. 1. p. 303. 

 Nutt. Gc?i. I. p. 151. Roem. ^ Schnlt. V. p. 307, 

 loNiDiuM Sprengelianum R. S^ S. V. p. 401. Solea stricta 

 Spreng. pug. I. p. 22. excl. syn. Vent.' 



Root perennial, fibrous. Stem simple, angular, leafy, a foot or 

 more high. Leaves erect, sessile, attenuate at each extremi- 

 ty, irregularly toothed above; nerves prominent. Sti/iutes 

 subciliate. Flwjers small, greenish ; lower fietal 2-lobed. 

 Calyx nearly as long as the petals ; segments not produced at 

 the base, divergent. Stigma rostrate, jjecurved, perforate, 

 longer than the anthers. Cafisule largej^smooth. 

 Hab. On wet shady rocks. In the vicinity of Philadelphia. 

 Barton. April — May. 



The habit of this species is quite distinct from that of all the 

 preceding Viol^, and indicates the propriety of removing it 

 to the genus Ionidium oiVentenat. It greatly resembles 

 I. strictum. 



174. CLAYTONIA. Gronovius. 

 Ccihjx 2-leavecl, Petals 5, emarginate. Stignui 



