. Gray's new manual of botany. A handbook of the flowering plants and ferns of the central and northeastern United States and adjacent Canada. Botany. CYPERACEAE (SEDGE FAMILY) 217 176. 177. G. Michauxiana. 178. G. aubulata. G. 188. <7. rostraia. G, rosi/rata, v. ambigens. utriculata. 185. C. Tue&ei'mani. 182. G. vesicaria. Leaves cm. broad Leaves mm. broad pp. Teeth of the beak strongly refracted . ff. Stanjinate spikes 2 or more rr. rr, Achene distinctly broader than long, its faces strongly con- caved 171, rr. Achene longer than broad, the faces flat or
. Gray's new manual of botany. A handbook of the flowering plants and ferns of the central and northeastern United States and adjacent Canada. Botany. CYPERACEAE (SEDGE FAMILY) 217 176. 177. G. Michauxiana. 178. G. aubulata. G. 188. <7. rostraia. G, rosi/rata, v. ambigens. utriculata. 185. C. Tue&ei'mani. 182. G. vesicaria. Leaves cm. broad Leaves mm. broad pp. Teeth of the beak strongly refracted . ff. Stanjinate spikes 2 or more rr. rr, Achene distinctly broader than long, its faces strongly con- caved 171, rr. Achene longer than broad, the faces flat or slightly convex ss. S8. Gulin thick and spongy at base, generally smooth and bluntly angled above ; leaves prominently nodulose. Perigynia flask-shaped, rather abruptly contracted to the beak, 3-6 mm. long. Stout; spikes cylindric, 2-10 cm. long .... Slender; spikes globose or short-cylindric, cm. long (183; Perigynia tapering gradually to the beak, cm. long (183) G. rostrata 88. Culm scarcely spongy at base, sharp-angled above, often harsh; leaves slightly if at all nodulose U. U. Beak of the perigynia usually slightly roug'hened or serrulate. Pistillatespikescylindric, cm. long. cm. thick 184. G. hullata. Pistillate spikes globose to thick-cylindric, 1-4 cm. long, cm. thick (184) C. hullata, v. Greenii. it. Beak of perigynia smooth iiu. uu. Mature perigynia mm. thick un. Mature perigynia not more than 4 mm. thick 'OD. â y-y. Perigynia ascending, straight; leaves firm, 2-7 mm. wide. Perigynia bladdery inflated. Perigynia ovoid-conic, tapering gradually ip the beak . Perigynia rounded-ovoid, rather abruptly tapering to the beak. Perigynia 6 mm. long. Spikes cylindric, 2-7 cm. long . . (182) G. vesieo/ria, v. monile. Spikes globose to short-cylindric, cm. long ... . (182) G. vesicaria, v. disienia. Perigynia 4-5 mm. long . . (182) G. vesiearia, v. Jejuna. Perigynia barely inflated, conic-subulate . (182) G. vesccaria, v. liaeana VK Per
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