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(Last Modified On 1/28/2013)
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(Last Modified On 1/28/2013)
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Subspecific
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ARENARIA LANUGINOSA SubSp. LANUGINOSA Maguire
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PlaceOfPublication
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Am. Midl. Nat. 48:498. 1951.
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Synonym
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Spergulastrum lanuginosumn Michx. Fl. Am. Bor. 1:275. 1803. Micropetalum lanuginosum (Michx.) Pers. Syn. PI. 1:509. 1805. Arenaria alsinoides Willd. ex Schlecht. in Mag. Gesells. Nat. Freund. Berl. 7:201. 11816. Stellaria elongata Nutt. Gen, 1:289. 1 8 IS. Arenaria diffusa Ell. Sketch. Bot. S. C. & Ga. 1:5 1 9. 1 8 21. Arenaria nemorosa HBK. Nov. Gen. & Sp. 6:3 5. 1823. Arenaria nemorosa a quitensis DC. Prodr. 1:409. 1824. Arenaria nemorosa 3 novogranatensis DC. loc. cit. 1:409. 1824. Arenaria jussiaei Camb. ex St. Hilaire, Fl. Bras. Mer. 2:126. 1829. Arenaria scabra Vahl, ex St. Hilaire, loc. cit. 2:126. 1829. Arenaria paradoxa Bart. Rel. Haenk. 2:15. 1831. Stellaria lanuginosa (Michx.) Torr. & Gray, Fl. Amer. Bor. 1:187. 1840. Arenaria lanugnosa a genuina Rohrb. in Linnaea 37:260. 1872. Arennaria lanuginosa /3 diffusa Rohrb. loc. cit. 37:263. 1872. Arenaria lanuginosa diffusa (Ell.) Macloskie, Rep. Princeton Univ. Exped. Patag. 8:394. 1905. Stellaria laxa Muschl. in Bot. Jahrb. 45:443. 1911. Arenaria lanuginosa var. longipedunculata Duncan, in Phytologia 3:282. 1950.
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Description
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Herbaceous puberulent laxly spreading perennials. Leaves opposite, lanceolate, oblanceolate or narrowly elliptic, apically attenuate and mucronulate, basally sub- sessile and attenuate, 5-20 mm. long, 2-5 mm. broad, scantily to densely puberulent with a whitish indumentum, often ciliate on the margins. Flowers solitary in the axils, the puberulent pedicels much longer than the subtending leaves. Sepals lanceolate to ovate, attenuate, puberulent 2-4.5 mm. long; petals 5, occasionally absent, obovate, entire, 2-4.5 mm. long; stamens 10, the filaments 1-4 mm. long; ovary sessile or short-stipitate, ovoid; styles 2-4. Capsule ovoid, 3-5 mm. long, the 2-4 valves deeply emarginate; seeds numerous, on basal placentae, cochleate, dark reddish brown to black, smooth or minutely tuberculate, ca. 0.75 mm. broad.
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Habit
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Herb
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Distribution
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Southeastern U. S. to Peru and Bolivia, in Central America only at moderate elevations.
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Specimen
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CHIRIQUI: vicinity of "New Switzerland", central valley of Rio Chiriqui Viejo, 1800- 2000 m., Allen 14I4; vicinity of Boquete, 1200-1500 m., Woodson d Schery 802.
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Note
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The typical species was originally described as apetalous, as are most specimens from the southeastern United States, the type locality. In Mexico and Central America however, where the ranges of several subspecies overlap, the large majority of specimens, obviously referable to this 'tapetalous" subspecies, have petals nearly or quite as long as the sepals. MacBride (in Field Mus. Bot. 132:601. 1936-8) reports that in Peru, where the plant is called celedonia and tauchchalli, it is the source of an astringent used for hemorrhages of the uterus.
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