PIPER NORTH AMERICAN BPECIKS OV FESTUCA. 2] 



The American forms may be recognized by the following key: 



KEY TO THE si BSPECIES mm \ i;i BRA. 



Spikelets glabrous or merely Bcaberulous. 



Blades of the innovations involute, oi the culm Mat or folded; panicle not densely 

 congested. 



Leaves and usually the spikelets green. 

 Florets not proliferous. 



Spikelets 7 to s nun. long rubra. 



spikelets 10 to L2 mm. long rubra megastachys. 



Florets proliferous rubra prolif ra. 



Leaves an<l spikelets glaucescent rubra glaucodi a. 



Blades all plane. 



Spikelets green; Lemmas lanceolate rubra multifiora. 



Blades all involute, rather rigid; panicle very dense. 



Leaves green; spikelets glabrous or glaucous rubra d\ nsiuscula. 



Leaves and spikelets very glaucous. rubra pruinosa. 



Spikelets pubescent with short hairs rubra kitaibi liana. 



Spikelets villous, often somewhat woolly rubra lanuginosa. 



1:5a. Festuca rubra meg-astachys < laud. 



Fe8tuca rubra megastachys Gaud. Fl. llelv. 1: 287. 1828. Type from Switzerland. 

 Festuca rubra diversifolia Gaud. op. cit. 288. Type from Switzerland. 

 Festuca oregona Vasey, Bot. Gaz. 2: 12(5. L877. Type specimen in the National 

 Herbarium from Oregon. 



Festuca rubra grandiflora Hack. Mon. Fest. L39. 1882. Based on F. rubra diversifolia 

 Gaud. 



The following specimens are referred here: 

 Canada: 



Point Seche, Gaspe, Macoun .'57. 

 New Jersey: 



Absecum, Commons L85. 

 Alask \ : 



Attah Island, Macoun 22806. 

 British Columbia: 



Naiiaimo, Macoun 29682. 

 Washington: 



Klickitat County, Suksdorf 1140. 

 Klickitat River, Suksdorf 1 147. 

 Obegon: 



Sauvies [aland, Hour//, June 15, 1882. 



13b. Festuca rubra prolifera subsp. now 



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



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

 lets. It is 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 Mount Washington 

 by Pringle in 1877. 



