150 Karl M. Wiegand and Arthur J. Eames 



1. S. herbacea L. Carrion Flower. 



Rich moist gravelly thickets, with little apparent reference to the lime content of 

 the soil ; frequent. June. 



Near Cayuta Lake; Inlet Valley; Coy Glen; South Hill; Cascadilla woods (D.) ; 

 Beebe Lake (D.) ; Turkey Hill; e. of Caroline Center; McGowan Woods; e. of 

 Ludlowville ; n. w. of East Lansing ; w. of Howland Island. 



N. B. to Man., southw. to Fla., La., Nebr., and Tex.; infrequent on the Coastal 

 Plain. 



2. S. hispida Muhl. Green Brier. 



Damp woodlands and moist thickets, in rich loamy, often alluvial, soils; frequent. 

 June. 



Enfield Glen (D. in C. U. Herb.); Cascadilla woods (D.!); Fall Creek woods 

 (D.) ; Slaterville Swamp; alluvial woods n. of Mecklenburg; Salmon Creek, w. of 

 Genoa; Lake Como; w. of Howland Island. 



Conn, to Minn., southw. to N. C. and Tex. ; absent on the Coastal Plain. A plant 

 of the interior. 



26. AMARYLLIDACEAE (Amaryllis Family) 

 1. Hypoxis L. 



1. H. hirsuta (L.) Coville. (H. erecta of Cayuga Fl.) Star Grass. 



Dry gravelly or sandy grassy slopes near woods, in acid soils; frequent. June-July. 



On the chestnut acid soils w., s., and s. e. of Ithaca, on the crests of the ravines 

 and the cliffs of Cayuga Lake, and in the sands n. of the lake : Enfield ; South Hill ; 

 Turkey Hill; Cascadilla woods (D.\) Fall Creek woods (D. !) ; w. of Asbury; 

 and elsewhere. Absent in the McLean district and on the clays and rich soils back 

 from the lake shore. 



S. w. Me. to Sask., southw. to Fla., e. Kans., and Tex. A characteristic plant "on 

 the Coastal Plain. 



27. IRIDACEAE (Iris Family) 



a. Style branches broad and petaloid, opposite the anthers ; flowers very large ; plants 

 flag-like. 1. Iris 



a. Style branches filiform, alternate with the anthers ; flowers small ; plants grass- 

 like. 2. Sisyrinchium 



1. Iris (Tourn.) L. 



a. Flowers blue; capsules 25-45 mm. long; plant 5-8 dm. tall. 1. /. versicolor 



a. Flowers yellow; capsules 50-70 mm. long; plant 10-17 dm. tall. 2. /. pscudacorus 



1. I. versicolor L. Blue Flag. 



Swamps and meadows, in various, more or less acid, soils ; common. June. 

 Lab. to Man., southw. to Fla. and Ark., including the Coastal Plain. 



2. I. pseudacorus L. Yellow Iris. 

 Marshes ; scarce. June-July. 



Brook bed, Bald Hill, Caroline; Inlet Marshes (DA) ; Dwyer Pond; s. of Union 

 Springs, near the railroad (D.\) ; Howland Point. 

 Newf. to N. Y. and N. J. Adventive from Eu. 

 A most beautiful plant. 



2. Sisyrinchium L. 



a. Stem below the inflorescence 2.5 mm. in diam. or less ; umbels solitary, rarely 

 2; lower bract, subtending the umbel, much exceeding the other; pedicels equal- 

 ing or slightly shorter than the second bract. 1. S. angustifollu»i 



