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(Last Modified On 10/29/2012)
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(Last Modified On 10/29/2012)
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Genus
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ISCHNOSIPHON Koern.
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PlaceOfPublication
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Nouv. Mem. Soc. Nat. Moscow 11:346. Pl. 10-11. 1859.
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Synonym
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Pleiostacbya K. Sch. in Engl. Pflanzenreich IV. 48:164. 1902.
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Description
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Stout rhizomatous, caulescent, perennial herbs; leaves 2-ranked, chiefly basal; inflorescence spicate, solitary or clustered; bracts persistent, closely imbricated, chartaceous or subcoriaceous, subtending small clusters of sessile or subsessile flowers; sepals 3, free, equal; corolla with a long slender tube, the limb 3-lobed; staminodia 2-3, the outer solitary, petalaceous; fertile stamen 1; ovary inferior, 1-celled; fruit a 1-seeded, loculicidally dehiscent capsule.
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Key
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a. Spikes narrowly cylindrical, occasionally interrupted. - . 1. I. LEUCOPHAEUS aa. Spikes strongly compressed, continuous. b. Bracts glabrous, pruinose. c. Spikes pedunculate - 2. I. PRUINOSUS cc. Spikes sessile - 3. I. PITTIERI bb. Bracts conspicuously ferruginous-pilose - 4. I. MORLAEI
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