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1900] Fernald, — Some northeastern species of Scirpus I7 
elevated far above the others; the involucre and involucels brown not 
terra-cotta at base: spikelets ovoid-oblong, 4 to 6 mm. long, from 
2 to 5 in clusters at the tips of the filiform flexuous branchlets, the 
middle spikelet sessile, the others slender-pedicelled : scales brown or 
yellowish-brown ; bristles pale brown, 5 mm. long. — A characteristic 
plant, the northern representative of S. “riophorum. Alluvial marshes 
and thickets, from the Connecticut Valley to Michigan and Wisconsin. 
Specimens examined : — New HawPsHIRE, Walpole, Aug. 2 (over-ripe), 
1899 (M. L. Fernald, Herb. Alstead School Nat. Hist. no. 1) : VER- 
MONT, North Hero, July 3o, Aug. 6 (over-ripe), 1899 ; Knight's Island, 
Aug. 6 (over-ripe), 1899; Lake Dunmore, Aug. 15 (over-ripe), 1899 ; 
Woodbury, alt. 460 m., Aug. 22, 1899 (Ezra Brainerd) : NEw YORK, 
Ithaca, July 11, 1893, July 15 (over-ripe), 1894, July 25 (over-ripe), 
1895 (K. M. Wiegand): MicHiGAN, Troy, (Houghton) : WISCONSIN, 
Alma, 1861 (7. 7. Hale). 
S. PEDICELLATUS, var. pullus. Rays somewhat more unequal than 
in the species: spikelets duller brown and longer, 7 to ro mm. long. — 
VERMONT, along Otter Creek, Middlebury, Aug. 11 (over-ripe), 1899 
(Ezra Brainerd): Massacuusetts, Williamstown, Aug. 9, 1898 
(7. R. Churchill). 
S. ATROCINCTUS, Fernald, l. c. 502. — Throughout New England, 
northward and westward, mature in late June and July, or in the moun- 
tains in early August. A very pale form, rather more lax than the type 
and with weaker coloring in the sheaths, has been collected in New 
Hampshire, Vermont and Michigan. 
S. ATROCINCTUS, var. BRACHYPODUS, Fernald, lc. 503. — Range of 
the species, but more common northward and at higher altitudes. 
S. ATROCINCTUS, var. grandis. Taller (1 to r.8 m. high) and 
stouter throughout than the species; culm just below the involucre 
often 2 or 2.5 mm. in diameter: leaves 4 to 7 mm. wide : inflorescence 
generally longer than in the species, 2 or 3 dm. long, rays very unequal, 
some of the primary ones far overtopping the others : spikelets oblong, 
7 to 10 mm. long, grayish brown. — New HawrsHIRE, Alstead, Aug. 
9, 1899 (M. L. Fernald, Herb. Alstead School Nat. Hist. no. 2): 
VERMONT, Middlebury, Creek Road, Aug. 11, 1899, Battell’s Pond, 
Aug. 17, 1899 (Zzra, Brainerd). An anomalous plant, from its 
coarse habit, somewhat brownish color, and rather late-flowering 
season suggesting a possible relationship with S. pedicellatus ; but with 
the black involucre, grayish tinge in the spikelets, and elongation of 
some of the primary rays so characteristic of S. atrocinctus. 
While collecting and studying this group of species some other 
Scirpi have been found which are undescribed or ordinarily misinter- 
preted. One of these, which so far as yet known is confined to the 
Connecticut Valley, was discovered in 1881 in Vermont, by the late 
Edwin Faxon and it has since been collected in that state by President 
