(Last Modified On 4/2/2013)
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(Last Modified On 4/2/2013)
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Species
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Hackelia mexicana (Schlecht. & Cham.) I. M. Johnston,
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PlaceOfPublication
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Contr. Gray Herb. 68: 46, 1923.-Fig. 1A.
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Synonym
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Cynoglossum mexicanum Schlecht. & Cham., Linnaea 5: 114, 1830. Lappula costaricensis Brand, Repert. Spec. Nov. 18: 310, 1922. Hackelia costaricensis (Brand) I. M. Johnston, Contr. Gray Herb. 68: 46, 1923.
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Description
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Herbs, somewhat suffrutescent basally; to 1. 5 m, the branches pubescent, the hairs white. Leaves elliptic to obovate, acute or ? acuminate, entire, the bases obtuse to long-attenuate, the basal leaves exaggeratedly so, to 12 cm long and 5 cm wide, pubescent on both surfaces, more so on the veins beneath; subsessile to petioles 18 cm long for basal leaves. Inflorescences racemes, scorpioid, elongat- ing in fruit. Flowers with pedicels ca 1-5 mm long; bracteole single, leaf-like, size variable; calyx of 5 sepals, weakly connate basally, the lobes subulate or deltoid, ca 2-3 mm long, pubescent; corolla funnelform, weakly zygomorphic, blue, the tube ca 1.5 mm long, the lobes oblong, ? unequal, ca 1.6-2.2 mm long and 1.4-2 mm wide, with 5 faucal appendages opposite the lobes; stamens sub- sessile, the anthers ca 0.5 mm long; ovary 4-lobed, distinctly so, disc present, the style gynobasic, the stigma capitate. Fruit 4 nutlets, ? pyramidal, connate apically, ca 2 mm high, covered with glochidiate spines, the spines sometimes of 2 distinct lengths, 2 nutlets with long spines and 2 nutlets with shorter spines.
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Habit
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Herbs
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Distribution
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Mexico and Central America.
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Specimen
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CHIRIQUI: vic of Cerro Punta, Blum et al. 2422 (MO), Ridgway & Solis 2394 (MO); Potrero Muleto, Davidson 1018 (MO); vic of Casita Alta, Woodson et al. 890 (MO).
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