Monocotvls or Endogenous Plants. 25 



1. Genus HY-POX'-IS.-- Perianth persistent, (l- parted ; flowers 1-4, 

 yellow inside, umbellate; leaves linear, grassy and hairy. 



Hy-pox'-is hir-su'-ta (L.) Willd. (//. erccta 1,.) Star Grass. A low 

 grass-like plant with conspicuous flower. 



VII. Order DI-OS-CO-RE-A'-CEyE. YAM FAMILY. Flowers small 

 stamens 6 ; pod 8-celled, .']-winged, seeds 1 or 2 in each cell. 



1. Genus DI-OS-CO-RE'-A. — Flowers dioecious, in axillary panicles 

 or racemes; capsule .'i-celled, ^J-winged. 



Di-os-co-re'-a vil-lo'-sa L. Wild Yam -root. -Slender, twining over 

 bushes, leaves cordate, !) to 11 -ribbed. 



VIII. Order l-RI-DA'-CE-/E. IRIS FAMILY.—Flowers perfect; ovary 

 inferior, 3-celled, stamens 3, style single, stigmas o. 



Perianth regular, stigmas not petaloid a . 



Outer divisions recurved, inner erect, stigmas petaloid Iris. 1 



a. Stigmas dilated ; filaments distinct; rhizome creeping Gemmingia. 2 



a. Stigmas thread-like ; filaments united ; root fibrous Sisyi-iitchiuyii. 3 



1. Genus I'-RIS. — Perianth (]-cleft, stamens distinct, the anthers 

 covered by the over-arching petaloid branches of the style. 



T-ris ver-sic'-ol-or L. Common Blue Flag. — Flowers violet-blue, vari- 

 egated; stem leafy, 1-3 ft. high, stout, angled on one side; leaves ^% in. 

 wide. 



T-ris cris-ta'-ta Ait. Crested Dwarf Iris. — Stems :>-() in. high; the 

 ottter perianth segments O'csted, but beardless. 



2. Genus GEM-MIN'-GI-A. —Perianth segments widely spreading, 

 orange-yellow, mottled above with purple spots, stamens tinited only 

 at the base. 



Gem-min'-gi-a chi-nen'-sis (L.) Ker. [Bt'lauicanda chinensis Adans.) 

 Blackberry Lily. — Occasionally escaped from cultivation. 



3. Genus SIS-Y-RIN'-CHI-UM. Perianth (i-parted; stamens united; 

 leaves grassy or lanceolate; stems 2-edged or winged; flowers small, 

 blue, purplish (or white), from a two-leaved .spathe. 



Sis-y-rin'-chi-um ber-mu-di-a'-na L. {S. attgustifoliuvi Mill, and .S". 

 anceps Cav.) Blue-eyed Grass.- -In moist meadows, common. 



