166 EIGHTEENTH ANNUAL KEPORT ON THE STATE CABINET. 



setaceous, with the margins hispidly scabrous upward ; the lower ones 

 equalling the culm ; the upper ones much shorter. Lower sheaths pilose ; 

 upper ones smooth. Panicle pyramidal, spreading or subcontracted ; 

 branches solitary, nearly simple, few and loosely flowered. Glumes pur- 

 plish ; the outer one reduced to a subula, about one-half the length of 

 the inner one, which is strikingly membranaceous in texture, ovate or 

 ovate-oblong, one-nerved, with the nerve produced into a short cusp. 

 Valves of the perianth oblong-lanceolate, rather obtuse, thin and mem- 

 branaceous, a little shorter than the superior glume. Inferior valve ob- 

 scurely one-nerved, slightly apiculate. Superior valve two-nerved, a little 

 shorter than the outer one. Stamens 3. Anthers large, linear, orange-red. 

 Stigmas 2, hairy. Styles very short. Caryopsis subglobose, coriaceous, 

 smooth and shining. 



Hab. On rocks, Watertown, Jefferson county, Dr. Craioe : Gray in Rare 

 plants of Northern N.Y. Rare. August, September. 



CRYPTANDRTJs, Gray. Hidden-flowered Sporobolus. 



Panicle pyramidal, the base usually inclosed in the upper sheath, with 

 spreading mostly alternate branches, which are hairy in the axils ; spike- 

 lets racemose ; flowers awnless ; lower glume very short ; the upper one 

 as long as the nearly equal lanceolate acute paleas ; sheaths bearded at the 

 throat : Torrey Ann. Lye. N. Y. Fl. N. Y. 



Sandy wastes. Shores of Onondaga lake, along the west side. Abundant 

 on the beaches of Lake Ontario, from Sodus point, Wayne oeunty, to Brad- 

 dock's bay, Monroe county. Rare. August - October. 



SEROTINUS, Gray. Late-flowering Sporobolus, 



Moist banks. Shady water-sides at the head of Sodus bay, Wayne county. 



Rare. September. 



AGROSTIS, L. Bent-grass. 



PERENNANS, Tuckerman. Perennial Agrostis. 



Damp shady woodlands. Half-open places in all deep arbor-vitse swamps. 

 On the flats of the Mohawk, and the hills of the southern part of this county 

 and south Herkimer county. Near Bridgewater, Gray. Frequent in the north 

 woods. Penn-Yan, Yates county, Sartwell in herb. Ham. Coll. 



Scarce. August. 



SCABRA, Willdenow. Hair- grass. Rougk-panicled Agrostis. 



Old fields, rocky woods, barren hillsides, dried swamps. Common at Little- 

 falls, and on the south range of hills. Woods of north Herkimer county. 



Abundant. 



var. MONTANA, Tuckerman. Mountain-side Agrostis, 



Exposed rocks. Bald rock, north of Third lake, in short tufts or turfs in 

 the hollows of the surface : leaves very short, setaceous. Rare. August. 



VULGARIS, Withering. Common Agrostis. 



Meadows, fields, banks. Native near Oneida lake. Gray in herb. Sartwell 

 Ham. Coll. Shore of Lake Ontario, at Sackett's-harbor, Gray. Frequent 

 along the south side of the Lake, on sandbanks and ridges. 



Everywhere naturalized. August. 



ALBA, L. White-panicled Agrostis. 



Low grass-lands, swamps. Abundant. July. 



var. ARISTATA, Gray. Awned Agrostis, 



Sandy fields, near Oneida lake, Knieskern. Sandy field near the outlet of 

 Oneida lake, Torrey Fl.N.Y. Uncommon. June. 



