78 Carex disperma, Dewey
syn. c. loliacea, schk (not of Linn) c. grancilis, Carey (not of [Eluh?].) c. tenella? schk
Spikes 2 to 4, generally 3, very small, remote, with commonly two fertile flowers, the lowest supporter by a lanceolate awned bract; perigynia ovate, nerved, twice the length of the scale. Culms 6 to 12 inches high—flowers in May. Swamps—common
Plate 1 Fig 20—a head of spikes; b same when in flower; c perigynia d same when young, showing the scale and stigmas; e the scale; f achenium; g the bract; h a section of the culm.
Milwaukee, Wisconsin; Ohio, Michigan and about Lake Superior (Mr. McMullen)
*** Spikes pistillate above, staminate below.
79 Carex trisperma, Dewey
Spikes 2-3, ovate, remote, with about three fertile flowers, the lowest with a long bract, surpassing the culm; perigyica oblong, plano=convex, slightly many nerved, longer than the scale.
Culms 1 to 2 feet high slender, spreading. Flowers in June.
Michigan; About Lake Superior. Extends to New England, and to the Arctic Region.
80 Carex tenniflora Wahlenburg.
Spikes three, few flowered, approximate; ovate; perigynia ovate=oblong, plano=convex, about the length of the broadly ovate acute scale; achenium ovate. Culm Flowers in Tamarac swamps
Plate VIII fig 16- a head of spikes; b, perigynium; c scale; d achenium and pistil, e staminate flower.
Milwaukee in Wisconsin; Michigan; about Lake Superior. Extends northward to the arctic regions, & eastward to N. England.
81 Carex canescens Linneas
syn. C. curta, good. C. Richardi Michx. c.
Spikes 5 to 7, about 12 to 20 flowered, the 2 or 3 upper approximated, the rest all distinct and the lowermost remote, ovate; perigynia ovate, about the length of the pointed scale. Culm one to two feet high; flowers in May. Swamps.
Plate VIII fig 17 a Head of spikes; b perigynium; c section of the same; d the scale; e achenium.
Wisconsin Michigan, About Lake Superior; and northward to the Coast of the Arctic Sea. A native also of Europe
82 Carex Persoonii Sieb.
Syn. c. vitilis Fries. C. sphoerostachya Dewey.
Spikes 3 to 6, ovate, sub-globose, the three upper closely approximatesd, the lowermost remote, about six flowers, bracteate; perigynia ovate-oblong, lanceolate, or tapering-rostrate, longer than the ovate scale, not becoming tawny.
Culms about one foot high, slender flaccid, leafy toward the base.
Ohio; Michigan. Also found in the Arctic regions.