95 
Geogr. area: Northern North America (very variable: C. membrano- 
pacta, C.ambusta ete.), Northern Scandinavia, Russia and Siberia. 
151. C. pulla Good. 
Lge. Consp. Fl. Groenl. p. 153 ex parte; Hartz, Nordést Gronl. p.347; 
Dusén, Ost-Groénl. p. 57; Nath., Spetsb. Karly. p. 351; Trauty. Fl. rip. Kolym. 
p. 566, Consp. Fl. Noy. Zemlja p. 82; Scheutz, Pl. vase. Jeniss. p. 181; 
Feilden, Nov. Zemlya p. 21; Fl. D. tab. 2850; f. laxa Trautv. Pl. Sib. bor. 
p. 130; f. tristigmatica Trauty. Fl. Terr. Tschuktsch. p. 39; f. laxa and 
f. tristigmatica Kjellm., Vest-Eskim. Land p.56; f. pedunculata and f. tristig- 
matica Kjellm., As. Beringss. p. 560; Kjellm. & Lundstr., Noy. Semlja p. 315. 
As C. rotundata is the Arctic substitute for C. rostrata, so C. pulla 
in these regions remplaces C. vesicaria L. 
Rhizome creeping; culms robust, 5—30 em. high, scabrous above; 
leaves green, 2—4 mm. broad, mostly flat or a little involute on 
the margins, rigid, mostly about as long as the culms; bracts small, 
shorter than the culms; male spikelet 1 (seldom 2), female spikelets 
1—2 (seldom 3), ovoid or short-cylindrical; the lower with a capillary 
stalk and often drooping; scales broadly ovate, obtuse, blackish- 
brown; utricles blackish-brown, at least at the upper part, shining, 
ovoid, very faintly nerved, beak short, smooth, terete, two-toothed; 
stigmas 2, seldom 3. 
Am.: Port Clarence, West Greenl. [rare] 64°—70° (!), East Greenl. 
70°—71° (), 72°30’. Eur.: Spitsbergen (!), Novaya Zemlya to 74° (1), 
Waigats, Habarowa (!). As.: Arctic Coasts to Chukches Land. 
Geogr. area: Northern North America, Iceland, Farées, Mountains 
of Scotland, Northern Scandinavia and Russia, Northern Siberia. 
Obs. Perhaps some of the statements from Asia (Kjellman and Trautvetter) 
belong to the foregoing species. 
XVI. GRAMINEAE Juss. (By O. GELERT). 
A. Spikelets in panicles. 
a. Spikelets with one terminal © flower and two lateral ¢ or sterile flowers 
(Phalarideae). 
anbateraletlowers sterile cron. piece eon) ainices 1. Anthoxanthum. 
(BimeLatenaliflowersuomctemee cach ae co ciiiy cite cuits i temas 2. Hierochloa. 
b. Spikelets one-flowered (without @ or sterile lateral flowers) (Agrostideae). 
a. Panicle contracted, dense, spike-like. 
i=, \Palecwithyawmer* beaks. ouneecache es eects eens Gee ss 3. Alopecurus. 
oy ealenvwithoutrawillwaee ae komicminstce chit acai 4. Phleum. 
8. Panicle not spike-like. 
1. Panicle narrow, short. Stigmas filiform with few short side-branches. 
Fruit at maturity loosely enclosed in the pales. .... . 5. Phippsia. 
2. Panicle of various form. Stigmas plumose. Fruit adherent to the pales. 
§ Flowers with long hairs from below the pale. . 6. Calamagrostis. 
§§ Flowers without long hairs. 
+ Glumes shorter than the pales......... 7. Arctagrostis. 
tf Glumes longer than the pales............ 8. Agrostis. 
