Lepidagathis
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Authority
Wasshausen, Dieter C. & Wood, John R. I. 2004. Acanthaceae of Bolivia. Contr. U. S. Natl. Herb. 49: 1-152.
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Family
Acanthaceae
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Scientific Name
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Type
Lectotype: Lophostachys villosa Pohl. Teliostachya Nees in Mart., Fl. Bras. 9:71. 1847. Lectotype: Teliostachya cataractae Nees.
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Description
Description - Erect to spreading perennial herbs or shrubs with cystoliths; leaves opposite, petiolate, sometimes conspicuously anisophyllous, margin entire to subcrenate; inflorescence of axillary and terminal densely bracteate dichasiate spikes; dichasia alternate, 1-flowered, secund, sessile to subsessile, subtended by a bract; bracts alternate, green or brightly colored, secund, both fertile and sterile bracts usually present, margin entire; flowers sessile or pedicillate, subtended by 2 bracteoles; calyx deeply 4-lobed, lobes heteromorphic, outer (anterior segment and posterior lobe)longer than inner (lateral)lobes, anterior segment comprised of 2 fused lobes apically 2-lobed, posterior lobe entire to emarginate, lateral lobes entire; corolla whitish to reddish to purple, tube ± gradually expanded distally, throat barely to clearly distinct, limb bilabiate, upper lip shallowly 2-lobed, lower lip deeply 3-lobed, corolla lobes imbricate in bud; stamens 4, didynamous, inserted near middle of corolla tube, exserted from mouth of corolla; anthers of longer pair of stamens 2-thecous, the thecae equal in size, parallel to sagittate, equally inserted, anthers of shorter pair of stamens 1-thecous, the thecae lacking basal appendages; style exserted from mouth of corolla; stigma appearing subcapitate; capsule substipitate, ellipsoid, retinacula present, septa with attached retinacula remaining attached to inner wall of mature capsule; seeds 4, hornomorphic, lenticular.
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Discussion
Benoist (Not. Syst. 2: 139-144. 1911) concluded that Lophostachvs is not distinct from Lepidagathis. This view is shared by C. Kameyama (pers. comm.) who will publish her findings later.