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Project Name Data (Last Modified On 6/19/2013)

Flora Data (Last Modified On 6/19/2013)
Species Liabum sagittatum Schultz-Bip.
PlaceOfPublication Flora 36: 37. 1853.
Synonym Munnozia sagittata (Schultz-Bip.) H. Robinson & Brettell, Phytologia 28: 56. 1974.
Description Lax, scrambling or trailing liana, the upper internodes densely but irregularly arachnoid-villous, glabrescent. Leaves opposite, petiolate; blades triangular, sharply truncate to weakly hastate at the base, shallowly serrate-dentate, 5-9 cm long, 2.5-4 cm wide, twice as long as wide, the upper surface green, glabrous, occasionally with scattered hairs, or sometimes pubescent along the prominent large veins, the lower surface densely gray-white lanate; petiole ca. '/2 as long as the blade, basally expanded and connate-perfoliate in pairs. Inflorescence an open, compound cluster of long-pedunculate dichasia, arising terminally and in the axils of the uppermost leaves. Heads yellow, large and conspicuous, the disc 1-2 cm across (exclusive of rays) when dried; involucral bracts thin, imbricate in ca. 3 series, the largest 5-10(-15) mm long, 2-4(-5) mm wide, broadly oblance- olate, the margins scarious-fimbriate to coarsely pubescent; receptacle flat to weakly convex; paleas of irregular lengths, thin, lacerate, marginally fused and forming alveolae surrounding the individual achenes; ray florets 20-40 in 1-2 series, the tube short-pubescent on the lower 1/3, the ligule conspicuous, 15-20 mm long in dried specimens; disc florets numerous, the corolla deeply parted into 5 prominent lobes, the style branches without conspicuous appendages. Achenes 1-1.5 mm long, reddish-brown except for a white torus-apophysis at the base, weakly fusiform with ca. 10 prominent ribs and a few conspicuous long hairs on the ribs, glabrate at maturity; pappus a single series of yellow-white capillary bristles 5-7 mm long.
Habit liana
Note Liabum sagittatum is known in Panama only from elevations of 2,300 m and above in the region of Cerro Punta, Chiriquf Province. Flowering collections have been made from December through May.
Specimen CHIRIQUI: Trail from Cerro Punta to headwaters of Rio Caldera, 2250-2500 m, Allen 1458 (US). Cerro Punta, 7000 ft, Blaisdell 342 (US). Trail N of Cerro Punta, Croat 10436 (MO). Slopes of Las Cumbres near Cerro Punta, Croat 13671 (MO). Ca. 2 mi E of Cerro Punta, 69,00 ft, Wilbur et al. 13128 (MO). Trail from Bajo Grande along the Quebrado Grande, 2100-2400 m, Wilbur et al. 15162 (MO). Guadalupe, Wilbur et al. 15329 (MO).
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