Vioia.] VIOLARIE^. 



73 



1 



latis appresso-villosis, paniculis foliosis elongatis, floribus breviter pedicellatis, caule erecto. 

 ■Pursh, FL Am. v. 1. p. 91. (non Linn.) De Cand. Prodr. v. L p. 285.— Lam. PL t 52. 

 / 1.? Tomi/ in Fl. of Mid. Un. St v. 1. p. 161. 



Hab. Gravelly hills, Canada. Pursh. North side of Lake Wiaipeg. Drummond. — Only one specimen 

 of this exists in the collections of our Arctic Travellers ; and it has the root-shoots perfect, but the stem 

 and branches have lost all their leaves, and bear only a panicle of ripe capsules. It would hence appear 

 that the upright and flowering branches die down in the autumn ; and that our Travellers in passing through 

 the country of this plant, were either too early or too late to meet with it in perfection. It is frequent in 

 the New England States, and in all probability too in Upper Canada. Lechea racemulosa Br. Boott finds 

 in similar situations near Boston, United States ; but except in its larger growth, and in haviug some of the 

 stem-leaves broader, I can scarcely distinguish it from L. minor ; an opinion in which I am happy to he 

 confirmed by Dr. Torrey. The two remaining American species of this genus, L. thymifolia, Mich., and 

 L. tenuifolia of the same author, are confined to the more southern of the United States. 



3. HUDSONIA. Linn. 



CaL S-partitus, segmentis infequalibus, 2 exterioribus minutis. Pet. 5. Stam, 9-30. 

 Stylus rectus, simplex. Stigma simplex. Caps, l-locularis, 3-valvis, 1-3-sperma. Semina 

 granulata. Embryo in albumine coiiieo immersus. — Suff'rutices parvi, suhccbspitosi. Folia 

 parva, exstipulata, 



I. H. tomentosa; c£espitosa cancscente-pilosa, foliis lato-lincanbus acutis arete imbrica- 

 tis, floribus subsessilibus solitariis vel aggregatis, segmentis calycinis obtusis, capsula mono- 

 sperma. — Nutt Gen. Am. v. 2. p. 5. Bigel. FL Bost. ed. 2. p. 213. De Cand. Prodr. v. 1. 

 p. 285. Sweet, Cist. t. 57. — H. ericoides. Rick, in FrankL \st Journ. ed. 2. App. p. 18. 



Hab. Central Canada. From Lake Huron, (Dr. Todd,) to as far north as Slave Lake, in several places. 

 Dr. Richardson. — This is very different froin the true H. ericoides of Linn, which has subulate and less 

 imbricated leaves, and longer peduncles to its flowers. — After flowering, the sepals of our plant become 

 spirally twisted. 



Ord. XII. VIOLA RIE^. DC. 



1. VIOLA. Tourn. 



Calycis sepala insequalia, omnia plus minus deorsum In appendices auricula^formes (e 

 dilatationibus nervorum prodeuntes) producta, post anthesin erecta. Pet. inajqualia, 

 sestivatione convolutiva, ungue trinervi; inferius deorsum in calcar cavum plus minus 

 productum. Stam. approximata aut coarctata (nee coalita) ad apicem dentiuni tori 

 pentagon! 5-dentati inserta. Filamenta basi dilatata, oblonga vel triangularia, antheras 

 demissius gerentia; lobi antherarum basi divergentes; stamina duo anteriora dorso 

 appendices varias nectariferas in calcar intrantes gerentia. Ovarium nunc superum, nunc 

 basi toro concavo cinctum et semiinferuni. ValvulcB capsulm elasticfE post maturationem 

 contractse semina ejicientes ; semina horizontalia manifeste carunculata, plus minus ovoidea 

 et nitida. Embryo oblongus, radiada teretiuscula, cotyledones sa^pius oblongo-orbiculatie 

 planiusculee radicula vix longiores. — Herbae plerumque perennes, rarissime a?mu(E, nunc 

 caule brevissimo vel subterraneOy unde acauks dictcB^ nunc caulescentes vel suffrutices parvi, 



VOL. I. 



