1908] HOLM—ALPINE GRAMINEAE 425 
shows their distribution in the polar regions, in the northern parts 
of Europe and Asia, but south of the arctic, and in the mountains 
farther south. 
TABLE II 
Pacific Atlantic 
Phieum alpinutii 140.) < coca oa 2 + + 
Agrostis varians:. =. fe + 
Calamagrostis purpurascens......| 3s 
C. canadensis acuminata......... ie + 
Desehampsia caespitosa os -s 
D. COWGINE: .. ivadec tee oh 
Trisetum subspicatum........... + + 
Of MOXZUOBA:. 55 ose op es a = 2 2 
P, praciling; . ocd. es h + . 
P:. Fendleriana: 2.3 ce + . 
PUR. seks ccna eee ae 5 
P.. Levers 5. os a + + 
Festuca ovina supina...........- a + 
TABLE III 
3 2 
POLAR REGIONS a 5 
= = Sia a ne 
- | z Bilale ao) g 
3) r=) Sj se | i 
e|/ zl es S ai tig! §123).615., 
< g e a a/eaej}%v 2 Fs 8g a | a : 22 
| a ai/2{s ae ee = 8 3 Sil alse 
SI StS Era) £1 ei ees erSi #12, a 
2(S(/lela|2/a] 8 ,e/o} <1 Oo) a] Rls 
Phleum alpinum......... +1 +1 + li #1 +e ei tt 
Ctemarn ostis purpuras- MG ne oe 
Peschainpsia cacspitosa |. | 2. (cf et] ¥] $e) 4] Fe tl tl tts 
Pp, ctum subspicatum +) ee] +P +] +] 4+) 4+] t]-- + oe hese 4 
9 ange +i/+{ +] 4] 4+} 4] 4+] 2] = Ree Ga tee 
F es el eho Eel ef ere err rrr es 63 . 
eee + | eb ed ee OL eb el wae Be 
Agro Supina iG ee eee ee ee ee ee tee ee oe ee 
Pyrum violaceum....| + | + | ..{ + [| «[--ftf-.d efor} tq 
Se agree caer a a ONE AONE TNR, SOMMONS Poaceae ants bgt Ure” SGD IS Le SS OS aa aE TOU 
Four of these are circumpolar: Trisetum subspicatum, Poa flexuosa, 
- alpina, and Festuca ovina, also the vat. supina. Calamagrostis 
Purpurascens is the only one that is confined to this confinent and 
Greenland ; Agropyrum violaceum occurs in the arctic Tegions of 
both hemispheres, and var. supina of Festuca ovina is also an inhabit- 
ant of these high northern regions outside America. All the others 
€xtend to the mountains farther south, and five of these have even 
