— 40— 



Island, Funston. Aounlaschka, Apple gate. Nabesna River, 

 Schrader & Hart man. 



3. V ariegatum genuinum. Stems caespitose, ascending or 

 erect. J / 2 to \ l / 2 lines in diameter, 6 to 10 inches tall, dark green, 

 5 to 10 angled, the keels deeply grooved in the center, each 

 lateral ridge bearing a regular row of tubercles, grooves with 

 regular bands of rosulae between the stomata, one at each end and 

 one half way between ; sheaths short, a little widened above, the 

 leaves strongly grooved in the center, the edges elevated, thus 

 becoming 4 angled, green with a narrow black limb which often 

 spreads late in the season, the lowest sheaths becoming black, 

 this again often turning ashy the second year. Teeth persistent, 

 erect, with wide hyaline borders, deeply centrally grooved, 4 

 ribbed, with divaricate, fuscous, rough, deciduous awns ; spike 

 sessile in the large upper sheath, strongly apiculate. The centers 

 of the teeth often fade, and become hyaline like the margins. 

 The black bands of the sheaths and the white margins of the 

 teeth are quite striking on the green stems and give the plant 

 its name. 



Central hollow 1-3 the diameter of the stem, little larger than 

 the vallecular. The vallecular bast is strongly developed and 

 separates the green parenchmya ; the carinal bast about equals the 

 vallecular and the parenchyma is continuous under it. The 

 green is thus of a Y shape, a-s in lacvigatum, which the anatomy 

 of this strongly resembles save for the small centrum. 



Found around the Northern Hemisphere in cold temperate 

 and Arctic regions. Very common in Northern Europe in 

 several varieties. Our plant is almost exactly like what is con- 

 sidered to be typical in Europe. In America it extends from 

 41.30 degrees to about 80 degrees. It was found in a stunted, 

 unfruitful form by Greeley at Lady Franklin Bay. The southern- 

 most point from which I have seen it is Connecticut. It has 

 been seen from Maine. N. H., Vt., N. Y., Yellowstone Park and 

 several localities in Canada. Alaskan specimens do not quite 

 agree with this, but are not varietally distinct. Abundantly re- 

 ported from California and neighboring States, but the many 

 specimens seen by me belong to other species. It may be found 

 in mountain meadows, but hardly elsewhere. This plant is rarely 

 found in sand and apparently never far from water. According 



