Piptostigma submontanum Ghogue, Sonke &amp; Couvreur, Pl. Ecol. Evol. 150 (2): 208 2017
Creators: name: Couvreur, Thomas L. P.
name: Dagallier, Leo-Paul M. J.
name: Crozier, Francoise
name: Ghogue, Jean-Paul
name: Hoekstra, Paul H.
name: Kamdem, Narcisse G.
name: Johnson, David M.
name: Murray, Nancy A.
name: Sonke, Bonaventure
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Magnoliales
Annonaceae
Piptostigma
Piptostigma submontanum

description: Piptostigma submontanum Ghogue, Sonké &amp; Couvreur, Pl. Ecol. Evol. 150 (2): 208, 2017 Fig. 92; Map 12B Type. Cameroon. South-West Region; Rumpi Mountains, between Lokando and Dikome Balue, 30 km NNW Kumba, <i>Letouzey R.G. 14535</i>, 23 Mar 1976: holotype: YA[YA0002870]; isotype: P[P02032181]. Description. Tree, up to 25 m tall, d.b.h. up to 20 cm; stilt roots or buttresses absent. Indumentum of simple hairs; old leafless branches sparsely pubescent, <b>young foliate branches tomentose</b>. Leaves: petiole 2-4 mm long, 2 mm in diameter, <b>tomentose</b>, cylindrical, blade inserted on top of the petiole; blade 40-49 cm long, 16-23 cm wide, obovate, <b>apex acuminate to mucronate</b>, acumen 0.8-1.3 cm long, <b>base decurrent to cuneate and narrowly cordate, coriaceous</b>, below densely pubescent when young, densely pubescent when old, above pubescent when young, glabrous when old, discolorous, whitish below; midrib impressed, above pubescent when young and old, below pubescent when young and old; secondary veins <b>58 to 65 pairs</b>, sparsely pubescent above; tertiary venation percurrent. Individuals bisexual; inflorescence cauliflorous, peduncle like base 10-18 mm long, axial internodes 2-5 mm long, <b>compact</b>, sympodial rachis 20-40 mm long. Flowers with 9 perianth parts in 3 whorls, 1 to 4 per inflorescence; <b>pedicel 2-6 mm long, 2-3 mm in diameter, tomentose</b>; in fruit ca. 25 mm long, ca. 4 mm in diameter, tomentose; basal bract 7-8 mm long, ca. 4 mm wide; upper bract 4-6 mm long, ca. 6 mm wide; sepals 3, valvate, free, 5-8 mm long, ca. 5 mm wide, ovate, apex acute, base truncate, brown, pubescent outside, glabrous inside, margins flat; petals free, outer petals shorter than inner; outer petals 3, ca. 5 mm long, ca. 4 mm wide, ovate, apex acute, base truncate, light yellow to red, margins flat, densely pubescent outside, glabrous inside; inner petals 3, valvate, 50-60 mm long, 5-7 mm wide, narrowly elliptic, apex acute, base truncate, margins wavy, densely pubescent outside, glabrous inside; stamens numerous, in 6 to 8 rows, 1 mm long, broad; connective discoid, glabrous, red; staminodes absent; carpels free, 12 to 15, ovary ca. 2 mm long, stigma globose, pubescence not seen. Monocarps sessile, 1 to 2, 20-30 mm long, 10-25 mm in diameter, obovoid, <b>apex rounded, tomentose, bumpy</b>, brown when ripe; seeds 6 to 8 per monocarp, 6-12 mm long, 3-5 mm in diameter, ellipsoid; aril absent. Distribution. Endemic to Cameroon; known from the South-West and Littoral regions. Habitat. A fairly uncommon species; in submontane rain forests. Altitude 900-1200 m a.s.l. Local and common names known in Cameroon. None recorded. IUCN conservation status. Endangered (EN) (Cosiaux et al. 2019a r). Uses in Cameroon. None reported. Notes. See under <i>P. calophyllum</i>. Specimens examined. <b>Littoral Region</b>: Ebo Forest Reserve Djuma camp Djashaka trail, 4.36°N, 10.25°E, <i>15 February 2013</i>, <i>Couvreur T.L.P.</i> 625 (WAG,YA). <b>South-West Region</b>: Edip to Kodmin ca 1 hour’s walk, 4.96°N, 9.666°E, <i>02 December 1998</i>, <i>Cheek M.</i> 9177 (K,P,WAG,YA); Mount Kupe Kodmin, 4.96°N, 9.683°E, <i>21 November 1998</i>, <i>Gosline W.G.</i> 198 (K,P,WAG,YA); Abang road and then right to forest, 4.93°N, 9.731°E, <i>11 December 1999</i>, <i>Gosline W.G.</i> 256 (K,MO,WAG,YA); Entre Lokando (900 m) et Dikome Balue (1200 m) 30 km NNW-Kumba, 4.85°N, 9.28°E, <i>23 March 1976</i>, <i>Letouzey R.</i> 14535 (P,YA); Rumpi Hills near Madie River, 4.94°N, 9.123°E, <i>22 February 1995</i>, <i>Thomas D.W.</i> 10496 (K).
description: Published as part of <i>Couvreur, Thomas L. P., Dagallier, Leo-Paul M. J., Crozier, Francoise, Ghogue, Jean-Paul, Hoekstra, Paul H., Kamdem, Narcisse G., Johnson, David M., Murray, Nancy A. &amp; Sonke, Bonaventure, 2022, Flora of Cameroon - Annonaceae Vol 45, pp. 1-532 in PhytoKeys 207</i> on pages 307-308, DOI: 10.3897/phytokeys.207.61432
description: {"references": ["Cosiaux, A, Couvreur, TLP, Erkens, RHJ, 2019a. Annickia affinis. The IUCN Red List of Threatened Species: e.T132512369A132513599. https://doi.org/10.2305/IUCN.UK.2019-3.RLTS.T132512369A132513599.en"]}