go Rhodora [Mar 
to 4, green throughout or brownish at base, the longest :3-9 cm. 
long: spikelets 3 to 30, on slender simple or forked minutely 
hairy peduncles (1-6 cm. long), in anthesis oblong-ovoid, 6-10 
mm. long, in fruit 1.5-3 cm. long: scales greenish drab to lead 
color, ovate to lanceolate, 4-6 mm. long, the prominent often scab- 
rous midrib extending quite to the tip, in the outermost sometimes 
prolonged as a short scabrous mucro; anthers linear-oblong, 1—1.25 
mm. long: achenes oblong-obovoid, trigonous, 2.5-3.5 mm. long: 
bristles white or pale buff. — Æ. polystachium, Pursh, Fl. 58 (1814); 
Eaton, Man. 11 (1817); Torr. [polystachyon], Fl. 66 (1824); Beck, 
Bot. 427 (1833); Eaton & Wright, Bot. 237 (1840); Torr. [ Poly- 
sfachyum), Fl. N. Y. ii. 359 (1843); Britton & Brown (Polysta- 
chyon], Ill. Fl. i. 273 (1896), in part, incl. fig. 641 ; Small, Fl. 175 
(1903). Æ. latifolium, B. viridi-carinatum, Engelm., Am., Jour. Sci. 
xlvi. 103 (1844). Æ. polystachyon, var. latifolium, Gray, Man. 529 
(1848), not Æ. /atifolium, Hoppe.— Bogs and wet meadows, New- 
foundland to Saskatchewan and British Columbia, south to Con- 
necticut, New York, Ohio, Michigan, Wisconsin, and said to follow 
the mountains to Georgia. Fruiting, southern New England, May 
and June; Gulf of St. Lawrence, July, August. Of the 70 sheets of 
specimens examined the following may be cited as typical. NEw- 
FOUNDLAND, sphagnous swamps, near Topsail, Conception Bay, 
August, rgor (Howe & Lang, nos. 1287, 1292): QUEBEC, peat- 
bogs, Salt Lake, Anticosti, August to, 1883 (7. Macoun, Herb. Geol. 
. Surv. Can., no. 32,273); Forteau, lat. 51°, July 31, 1882 (7. A. Allen, 
no. 13); arbor-vitae swamps, Carleton, July 24 & 27, 1904 (Collins, 
Fernald & Pease): New Brunswick, Campellton, July 1, 1876 
(R. Chalmers, Herb. Geol. Surv. Can. no. 32,271): Nova Scoria, 
peat-bogs, Sydney Mines, July 14, 1883, bogs, Yarmouth, June 23, 
1883 (Y Macoun, Herb. Geol. Surv. Can., nos. 32,281, 32,261): 
ONTARIO, near Sarnia, June 5, 1892 (C. Æ. Dodge); bog, Cassel- 
man, June 12, 1892, and swamps, near Tetreauville, June 1, 1903 
(J. Macoun, Herb. Geol. Surv. Can., nos. 32,267, 61,192): MANI- 
TOBA, tamarack swamp, near Sewell, June 12, 1896 (J. Macoun, 
Herb. Geol. Surv. Can., no. 16,389): SASKATCHEWAN, muskeag, 
Prince Albert, July 1, 1896 (/. Macoun, Herb. Geol. Surv. Can., no. 
16,391) : ALBERTA, bogs, Elbow River, July 12, 1897 (J. Macoun, 
Herb. Geol. Surv. Can., no. 25,329): BRITISH COLUMBIA, Kicking 
Horse Lakes, July 23, 1885 (/. Macoun, Herb. Geol. Surv. Can., no. 
