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(Last Modified On 10/24/2012)
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(Last Modified On 10/24/2012)
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Genus
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CAREX L.
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Reference
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Sp. Pl. 972. 1753 Kuekenthal Pflanzenr. IV20:67-767. 1909; Macken- zie, N. Am. Fl. 189:1-478. 1931-35, and N. Am. Caricaceae, 539 pI. 1940.
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Note
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A genus of more than 1000 species, chiefly in temperate and arctic regions.
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Key
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a. Perigynia biconvex; stigmas 2 - -- 1. C. LEMANNIANA aa. Perigynia trigonous; stigmas 3. b. Perigynia green or yellowish; straight. c. Perigynia 2.5-4 mm. long; achenes 1.5-2 mm. long - - 2. C. POLYSTACHYA cc. Perigynia 4.5-5 mm. long; achenes 3 mm. long - -- 3. C. HUMBOLDTIANA bb. Perigynia purplish, strongly curved _ - -4. C. DONNELL-SMITHII
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Note
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All the specimens seen by me from Panama have a paniculate inflorescence, though in C. polystachya the panicle may be greatly reduced.
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Tag
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