Group 5. Stamens^and pistils on distinct spikes.
1. Staminate spike single.
30. C. aurea, Nutt. On wet grounds ; small and fine.
— pyriformis, Schw. In this State is no other species of
this sub-group.
2. Staminate spikes 2 or more.
31. C. acuta, L. Bog Sedge, Grows in dense bogs ; culm
rises 2 — 3 feet, arching, as the seed ripens, very rough, 3-sided,
and with rough leaves, very rough on the edges, and long leaves
from towards the base. It forms some early food for cattle in
the spring. What are called bogs, which it forms, are large, grow
up a foot to 2 feet from the surface, very durable, and destroyed
only by cutting them off and heaping them together till the fermentation
shall destroy them,
var. erecta, D., and sparsiflora, D., are scattered plants,
in wet places, but not forming bogs.
32. C. ccespitosa, L. In dense cespitose masses,
33. C. aquatilis, Walk. Borders of ponds.
34. C. stricta, Gooden. About marshes ; very glaucous in
the young state.
35. C. crinila, Lam. In moist grounds.
36. C. paleacea, Wahl. In dry meadows.
II. Stigma 3-parted ; seed or nut 3,-sided. “ Cyp. Mon.”
Torrey, p. 402.
A. Spikes androgynous.
1. Stamens at the summit.
Group 6. Single spike on the culm.
37. C. polytrichoides, Muhl. Wet places ; cespitose.
38. C. leucozlochin, Ehrh. Marsh in Ashfield. j
— pauciflora, Light, and Schk.
Group 7. One or more radical peduncles with a single
spike, sometimes 2 or more.
39. C. pcdunculata, Muhl. Open woods ; early in spring.
2. Stamens at the base of the spike.
Group 8. Spike 1, sometimes more.
40. C. squarrosa, L. Moist fields ; Hadley..
B. Terminal spike androgynous, pistillate at the summit; the
others pistillate;
<j>roup 9. Pistillate spikes 2 or more.
41. C. virescens, Muhl. Borders of meadows,
var. costata, Schw. and Tor. Do.
42. C. hirsuta, Willd., C. triceps, Mx. Moist meadows,
var. pedunculata, Tor. Do.
43. C. Buxbaumii, Wahl. Do.
44. C. formosa, D. Do.
45. C. gracillima, Schw. Do. and dry.
— digitalis, Schw. and Tor. “ Mon. Cyp.”
46. C. Torreyana, D ,, is changed to C. Davisii, Tor. Do.
C. Staminate spike single and distinct from the pistillate.
Group 10. Pistillate spikes sessile, or with inclosed
peduncles.
47. C. pubescens, Muhl. Meadows and fields.
48. C. vestita, Willd. Dry fields in Hampshire County.
49. C. prcecox, Jacq. Salem ; Dr. Pickering.
50. C. flmci, L. Moist meadows.
51. C. tentaculata, Muhl. A variety was called C. rostrata,
Schk., not of Mx. Wet.
52. C. lupulina, Muhl. Hop Sedge. A large, strong plant,
with a. culm from 1 to 2 feet high,-and with long leaves, especially
those that come out under the flower. The barren spike
terminates the culm ; the fruit-bearing spikes are long and large,
and resemble the hop in form ; grows in wet places, and around
pools of water ; common ; June.
53. C. folliculata, Schk., is C. intumescens, Rudge. Wet.
54. C. varia, Muhl., C. Pennsylvanica, Lam. Fields,
var. pedicellala, D. In tufts.
55. C. marginata, Muhl. Open woods.
56. C. Davisii, D ., changed tb C. Emmonsii, D. Dry hills.
34