Cyrtandra boliohutensis

Habitat and ecology. Lowland to upland forest at an altitude of 50 – 1400 m.

Sumber: A TAXONOMIC REVISION OF CYRTANDRA (GESNERIACEAE) IN SULAWESI, INDONESIA

Proposed IUCN conservation category. The EOO of this species is 28,566 km 2 and the AOO is 16 km 2, based on a 2 × 2 km grid cell size, under the B criteria (Bachman et al., 2011). Many of the collection localities are at relatively low altitudes, where the general threat to this habitat type on the island is known to be high (Cannon et al., 2007; Thomas et al., 2011). However, they are all within protected areas: the Nantu Sanctuary Forest, the Mount Sojol Nature Reserve and the Lore Lindu National Park (UNEP-WCMC & IUCN, 2019). Because all the collection localities fall within protected areas, this species is assessed as Least Concern (LC).

Sumber: A TAXONOMIC REVISION OF CYRTANDRA (GESNERIACEAE) IN SULAWESI, INDONESIA

Branching herb to 1 m in height. Stems slender, striate, sparsely hairy. Leaves opposite, both members of a pair well developed but somewhat unequal in size or with one leaf of a pair markedly reduced, sometimes appearing alternate; petioles 1.2 – 2.5 cm long, hairy; blades 7 – 14 × 3 – 5 cm, oblong to narrow oblong, occasionally somewhat rhomboid, base acute, slightly asymmetrical, margin serrate, apex acuminate; 4 – 6 pairs of lateral veins, curving and running out to margin, subglabrous above, sparsely hairy below, more densely so on midrib and veins. Reduced leaves (where present) 4 – 5 mm long, scale-like, occasionally cordate. Inflorescences subsessile to shortly pedunculate in leaf axils or at base of stems in the axils of fallen leaves, 1 - or 2 - flowered; peduncle 1 – 2 mm long, hairy; bracts elliptic or oblong, glabrous, greenish brown, 11 – 22 × 8 – 10 mm, partly enclosing calyx at the base, 2 - lobed at apex or divided almost to base, sparsely hairy; bracteoles single, oblong, glabrous, green-brown, 10 – 16 × 5 – 6 mm; pedicels 2 – 5 mm long, sparsely hairy. Calyx tubular, ridged, green becoming dark red along ridges, 17 – 25 mm long, evenly 5 - lobed, lobes c. 2 mm long, triangular, acuminate at apex, sparsely hairy externally. Corolla white, tube somewhat flushed pinkish externally, yellow in throat with fine, purple spots on the inside of lobes, 35 – 65 mm long, narrowly funnel-shaped, flattened laterally, brown eglandular hairy externally, lobes spreading not recurved, 9 – 10 × 5 – 8 mm. Stamens with filaments 8 – 12 mm long, attached 20 – 30 mm above base of corolla; anthers 1.5 – 3 mm long, coherent at apices, with a fringe of hairs at the base of each anther; staminodes 3, 4 – 7 mm long. Gynoecium 23 – 35 mm long; disc cupular with lobed margin, 2 mm long, glabrous; ovary glabrous; style glabrous at base, eglandular hairy towards stigma; stigma peltate, slightly bilobed, c. 2 mm across. Fruits oblong to narrow ovoid, green or brown-green, glabrous, verrucose, 10 – 25 × 2 – 4 mm; calyx not or only partially persistent, base of style persistent.