Nautilocalyx coccineus

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Nautilocalyx coccineus


Terrestrial herb, 5-10 cm long. Stem sappy, prostrate, hirsute. Leaves unequal in a pair; petiole 1.5-10 cm long, hirsute; blade chartaceous when dry, obovate, larger blade 6-15 x 3-6 cm, margin crenate to widely serrate, apex round to obtuse, blunt, base asymmetrically acute to rounded, above hirsute-floccose, below hirsute on veins. Flowers 2-8, in epedunculate or short-pedunculate cymes; peduncle 0.2-0.5 cm long, villous; pedicel 1-3.5 cm long, hirsute. Calyx green, lobes free, 4erect, subequal, spathulate, 1 x 0.3-0.4 cm, dorsal one spreading, smaller, margin with 2 lateral teeth near apex, apex rounded, outside and inside hirsute; corolla strongly oblique in calyx, red, 3-4 cm long, tube straight narrow tubular, 1.7-3 cm long, base spurred, 0.2 cm wide, middle cylindric, throat widening, 0.2-0.3 cm wide, outside hirsute, inside glabrous in its basal part, puberulent in upper half, limb 2-2.5 cm wide, lobes subequal, spreading, suborbicular, 0.5-0.6 x 0.5-0.7 cm, margin entire to serrate; stamens included, inserted near base of corolla; ovary conical, 0.15-0.2 x 0.1 cm, with soft wavy pubescence, style 1.5-2 cm long, glabrous, stigma obscurely 2-lobed. Mature capsule light brown, globose (probably somewhat flattened), 0.6 x 0.5 cm.


Cuyuni-Mazaruni Region endemic, Guyana endemic, Upper Potaro endemic
Endemic to Guyana in the Upper Potaro and Cuyuni-Mazaruni Regions, near Mt. Ayanganna and Wokomung; collections studied (GU: 5).


Collected in flower in ; in fruit in .