APOGON 73 



ft. long, with single linear leaf low down. The spathe 

 is two to four flowered, outer valves lanceolate, 2 to 3 

 in. long. The pedicels are long, perianth-tube very 

 short; limb ijto 2 in. long, lilac; falls obovate-cuneate, 

 | to I in. broad, with blade as long as haft ; standards 

 oblong, J to J in. broad. The style branches are an inch 

 long, the crests broad. The capsule is I J to 2 in. long, 

 deeply grooved, narrowed to both apex and base. It is 

 native of the Rocky Mountains and from California to 

 North Mexico, where it ascends to 10,000 ft. 



The figure in the Botanical Magazine under this name, 

 t. 6579, represents /. longipetala var. montana, Baker. The 

 plate in Garden, 1896, Sept. 5, 1032, is probably correct. 

 Mr Carrington Ley, whose plant was figured, says it is 

 one of the earliest to flower, with light green linear 

 leaves and light lilac flowers a lovely plant. /. longi- 

 petala has distinctly glaucous leaves. 



16. I. prismatica, Pursh, Ker in Sot. Mag., t. 1504; 

 /. virginica, A. Gray, not of Linn. This can hardly be 

 described as ornamental, but I grew it without trouble on 

 a moist bed for several years. The rhizome is slender, 

 leaves weak, a foot or more long, ^ in. broad. The 

 stem is slender, I to 2 ft. long, simple or forked, with 

 two to three linear leaves. The spathes are one to two 

 flowered; valves somewhat rigid, I to ij in. long; 

 pedicels often much longer. The perianth is nearly 

 obsolete ; limb bright lilac, I J to 2 in. long ; falls with an 

 obovate blade J in. broad, shorter than the haft; standards 

 shorter, oblanceolate, ^ in. broad ; crests narrow. It is 

 native of the Northern United States. 



17. I. graminea, Linn.; Sot. Mag., t. 68 1; Red. 

 Li!., t. 299; Reich. Fl. Germ., t. 346. Anyone fond of 

 Irises would like this species, but it is not one of the 

 most showy. It forms dense tufts ; the leaves are thin, 

 conspicuously green, and not glaucous, strongly ribbed 

 and I to l^ ft. long, ^ to J in. or more broad. The 



