IRIDACEAE 89 



Family i. AMARYLLIDACEAE Lindl. Amaryi<i,is Famii,y. 

 Perennial from corms or short rootstocks. 

 Ovary and capsules one-half inferior. i. Aletris. 



Ovary and capsules wholly inferior. ij. Hypoxis. 



Perennial from coated bulbs. 3. Narcissus. 



1. ALETRIS L. 

 1. Aletris faiinosa L- Star-grass. Colic-root. (Man. p. 269; 

 I. F.y. 1023.) In dry soil, Me. to Minn., Fla. andXeun. — Pennsylvania: 

 Montgomery ; Chester ; L,ancaster ; Luzerne ; Clinton. 



2. HYPOXIS L. 

 1. Hypozis birsuta (L.) Coville. Star-graSS. (Man. p. 280; I. 

 F. y. 70(56.) In dry soil, Me. to Assiniboia, Fla. and Tex. — Pennsyl- 

 vania : Northampton ; Chester ; Lancaster ; Bucks ; Columbia ; 

 Huntingdon ; Franklin ; Monroe ; Montgomery ; Delaware ; 

 Allegheny. 



3. NARCISSUS L. 



1. Narcissus Pseudo-Narcissus L. Daffodil. (Man. p. 279. ) Esr 

 caped. Pa. and N. J. — Pennsylvania : Northampton ; Bucks ; Lancas. 



TER. 



Family 2. DIOSOOREACEAE Lindl. Yam Family. 

 1. DIOSCOREA L. 

 1. Dioscorea villosa L. Wild Yam-root. (Man. p. 281 ; I. F./. 

 106S.) In moist thickets, R. I. to Out. to Minn., Fla. and Tex. — Penn- 

 sylvania : Northampton ; Bucks ; Lebanon ; Lancaster ; Luzerne ; 

 Columbia ; Lackawanna; Fulton ; Franklin ; Delaware ; Alle- 

 gheny. 



Family 3. IRIDACEAE Lindl. Iris Family. 



Styles alternate with the stamens. 



Filaments distinct : seeds drupe-like. i. Gemmingia. 



Filaments united : seeds dry. 2. Sisyrinchium. 



Styles opposite or arching over the stamens. 3. Iris. 



1. GEMMINGIA Fabr. 



1. Gemmingia Chinensis (L) Kuntze. Blackberry Lily. (Man. 

 p. 284; I. F._/. loSs.) On hills and along roadsides, N. Y. to Ga., Ind. 

 and Mo. Nat. from Asia. — Pennsylvania : Northampton ; Bucks ; 

 Chester ; Lancaster ; York ; Delaware ; Allegheny. 



2. SISYRINCHIUM L. 



Scapes simple and terminated by the sessile or nearly sessile spathe or spathes. 

 Capsules 2-4 mm. long : leaf-blades mostly less than 1.5 mm. wide. 



1. 5. mucronatum. 

 Capsules 4-6 mm. long : leaf-blades mostly over 1.5 mm. wide. 



2. 5'. angustifolium. 

 Scapes branched or bearing two or more terminal peduncles. 



Foliage becoming dark in drying : broadly winged scapes over 1.5 mm. wide. 



3. 5. graminoides. 

 Foliage green in drying ; narrowly winged scapes less than 1.5 mm. wide. 



4. 5'. Atlanticum. 



