-T T 



h 



],XPER — NOKTH AMERICAN SPECIKR OF FESTUCA. 21 



The American forms may be recognized by the following key: 



KEY TO TOE SrnSPKClES <>F KKSTITA RlHKA. 



Spikelets glabroup or merely seaberuhtu«. 



Blades of the innovations involute, of the eulm flat or folded; panicle not densely 



congested. 



Leaves and usually the spikelets green. 



Florets not proliferous. * 



Spikelets 7 to 8 mm. lung rubra, 



SpikeletH 10 to 12 nun. long rnhra meyastachys. 



Florets proliferous ^''i^^« proUJenu 



Leaves and spikelets glaucescent rubra glaacodea. 



Blades all plane. 



Spikelets green; lemniaa lanceolate rubra muUiJiora. 



Blades all involute, rather rigid; panicle very dense. 



Leaves green; spikelets glabrous or glaucous rubra denshisctda. 



Leaves and spikelets very glaucous nihra prunumt. 



Spikelets pubescent with short hairs rubra kitaibeliana, 



Spikelets villous, often somewhat woolly rubra lanugk 



nos(t. 



i;5a. Festuca rubra megastachys Gaud. 



Festuca rubra mcgmtachjs Giiml. Fl. Ilelv. 1: 287. 1828. Type from Switzerland. 



Festuca rubra diversifolm ("land. op. cit. 288. Type from Switzerland. 



Festuca oregona\i\Bey, Bot. (Jaz. 2: 12(>. 1877. Type specimen in the National 



Herbarium from Oregon. 



Fti^fuca rubra grandiflom Hack. Mon. Fest. 1M^). 1882. Based on F. rubra diversifoHa 



Gaud. 



referred 



Canada: 



Boint Seche, Ga^pe, Macoun 87. 



New Jersey: 



Absecum, Coimnon.^ ^Ho. 



Alaska: 



Attah Island, Jfaroun 22808. 



BurrTSH Columuia: 



acoun 



Washington: 



Klickitat Covinty, SuLvIorflUQ. 

 Klickitat Kiver, >S'//Z-,s'(/or/l 147. 



Ohkcjok: 



Sauvies Island, /Ah/W/, June L"S, 1882. 



18b. Festuca rubra prolifera subsp. rtov. 



The plant of the White Mountains which has been referred to F. ovma vivipara L. is 

 in reality a viviparous form or state of F. rubra, differing only in its viviparous spike- 

 lets. It^s said to be the only form of the plant occurring in the White Mountains, 

 and while properly a state rather than a subspecies, may be named as above. It 

 seems surprising that no similar form occurs in Europe. 



The type is a specimen in the National Herbarium collected on .Alount Washington 



by Pringle in 1877. 





