148 NEW YORK STATE MUSEUM 



Large-bracted Tick Trefoil 



Mciboinid bractcosa (Alichaux) Kuntze 



Plate 1 1 1 



Stems erect, 2 to 6 feet high, glabrous or pubescent below, finely 

 pubescent above in the panicle. Leaflets 2 to 8 inches long, longer than 

 the petioles, ovate or ovate-lanceolate, long pointed, smooth or nearly so 

 above, usually pubescent beneath; stipules lanceolate, sharp pointed. 

 Flowers large, purple, one-third to one-half of an inch long with cuspidate, 

 striate, deciduous bracts; calyx deeply two-lipped, the upper lip two-toothed. 

 Loment i to 3 inches long, three to seven -jointed, the joints obliquely 

 oblong, about twice as long as wide, pubescent with hooked hairs, on a 

 stipe about as long as the lower calyx lobes. 



In open woods and thickets, Maine to Ontario, Minnesota, Florida, 

 Missouri, Arkansas and Texas. Flowering in August and September. 



Dillen's Tick Trefoil 



Meiboiiiid dilleiiii (Darlington) Kuntze 



Plate 1 1 2 



Stems erect, pubescent with scattered hairs, 2 to 3 feet high. Leaflets 

 rather thin, oval or oblong-ovate, blunt, i^ to 4 inches long, one-half to 

 \h inches wide, sparingly pubescent or glabrous above, softly pubescent 

 beneath; petioles much shorter than the leaflets. Flowers one-fourth to 

 one-third of an inch long, purple, in loose, terminal, compound racemes 

 with small, deciduous bracts. Loment i to 2 inches long, two to four- 

 jointed, the joints nearly triangular, about one-fourth of an inch long, 

 slightly convex on the back, pubescent with hooked hairs, with a stipe 

 shorter than the calyx lobes. 



In woods and thickets, Maine to Ontario, Minnesota, Alabama, 

 Tennessee. Missouri and Texas. Flowering from the last of June to 

 September. 



