Isolona campanulata Engl. &amp; Diels, Monogr. Afrik. Pflanzen. - Fam. 6: 83 1901
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
Isolona
Isolona campanulata

description: Isolona campanulata Engl. &amp; Diels, Monogr. Afrik. Pflanzen.-Fam. 6: 83, 1901 Fig. 33; Map 4I = Isolona leonensis Sprague &amp; Hutch., Bull. Misc. Inform. Kew: 151, 1916. Type. Sierra Leone. Northern Province, Yonibana, <i>Thomas N.W. 4230</i>, 30 Oct 1914: lectotype, designated by Couvreur (2009), p. 137: K[K000199016]. (this name was erroneously reported as " I. konensis " in Onana (2011)). = Isolona soubreana A.Chev., Explor. Bot. Afrique Occ. Franc. 1: 12, 1920. Type. Ivory Coast. Sassandra, Chevalier A.J.B. 19088, 23 Jun 1907: lectotype, designated by Couvreur (2009), p. 137, sheet here designated: P[P00363265]; isolectotypes: P[P00363264, P00363266]; WAG[WAG0027026]. Type. Cameroon. Northern Region; Bangwe, <i>Conrau G. 93</i>, 17 Oct 1899: holotype: B[B 10 0154200]; isotype: K[K000198841]. Description. Tree to shrub, 10-15 m tall, d.b.h. 10-15 cm; stilt roots or buttresses absent. <b>Indumentum absent</b>; old leafless branches glabrous, young foliate branches glabrous. Leaves: petiole 3-6 mm long, 1-2 mm in diameter, glabrous, weakly grooved adaxially, blade inserted on the side of the petiole; blade 10-18 cm long, 3-7 cm wide, elliptic to obovate, apex acuminate, acumen 1 cm long, base decurrent to cuneate, subcoriaceous, below glabrous when young and old, above glabrous when young and old, concolorous; midrib raised, above glabrous when young and old, below glabrous when young and old; secondary veins 7 to 12 pairs, glabrous below; tertiary venation reticulate. Individuals bisexual; inflorescences ramiflorous on old or young foliate branches, axillary. Flowers with 9 perianth parts in 2 whorls, 1 to 2 per inflorescence; pedicel 5-30 mm long, ca. 1 mm in diameter, glabrous; in fruit 2-5 mm long, 2-3 mm in diameter, glabrous; bracts 2 to 5, several basal and one upper towards the lower half of pedicel, basal bracts 2-3 mm long, 1-2 mm wide; <b>upper bract sometimes leaf-like</b>, 2-19 mm long, 1-4 mm wide; <b>sepals 3, valvate, free, 4-9 mm long</b>, 3-5 mm wide, elliptic to ovate, apex acute, base truncate, green speckled with red and purple, glabrous inside, glabrous outside, margins flat; petals basally fused, tube 4-7 mm long, inner and outer whorl not differentiated, equal; <b>lobes 6-20 mm long, 2-7 mm wide, triangular, apex acute</b>, green, turning bright yellow, margins flat, glabrous outside, glabrous inside, spreading horizontally; stamens numerous, in 3 to 4 rows, ca. 1 mm long, broad; connective discoid, glabrous, cream; staminodes absent; carpels fused into a single structure, ca. 2 mm long, stigma capitate, glabrous. Fruit syncarpous, sessile, 40-75 mm long, 20-35 mm in diameter, <b>ovoid, apex rounded, glabrous, smooth, bumpy</b>, green turning deep yellow when ripe; seeds not counted, 8-15 mm long, 5-10 mm in diameter, ellipsoid; aril absent. Distribution. A widespread species with a disjunct distribution in West (Sierra Leone, Liberia, Ivory Coast and Ghana) and Central Africa (Cameroon, Gabon); in Cameroon known from South, Central, Littoral and South-West regions. Habitat. An infrequent species in Cameroon; in lowland primary and secondary forests, also along rivers. Altitude 0-500 m a.s.l. Local and common names known in Cameroon. None recorded. IUCN conservation status. Least Concern (LC) (Cosiaux et al. 2019p). Uses in Cameroon. <i>medicine</i>: root against rheumatism, allay fever. Notes. This species is characterized by its large, foliaceous, and glabrous sepals, not appressed against the corolla tube, as well as the sometimes leaf-like upper bract. It is also a completely glabrous species, a character only shared with <i>I. cooperi</i> and <i>I. hexaloba</i>. The flower of <i>I. campanulata</i> is very distinct and uniquely campanulate. Specimens examined. <b>Littoral Region</b>: Lombe amp Tissongo Study Area Doula-Edea Reserve, 3.78°N, 10.04°E, <i>01 June 1976</i>, <i>Waterman P.G.</i> 830 (K). <b>South Region</b>: ca 15 km SE of Kribi Kienke Forest Res at Bidou II, 2.86°N, 10.03°E, <i>30 June 1969</i>, <i>Bos J.J.</i> 4947 (BR,P,WAG,YA); 10 km From Kribi Lolodorf road, 2.96°N, 9.966°E, <i>09 July 1970</i>, <i>Bos J.J.</i> 7069 (WAG). <b>South-West Region</b>: 5.46°N, 9.883°E, <i>7 October 1899</i>, <i>Conrau G.</i> 93 (B,K); 16 minutes from research station towards rivers, 5.34°N, 9.496°E, <i>27 November 2000</i>, <i>Gosline W.G.</i> 289 (K); Ente Ekondo Nene et Loe 15 km NW Ekondo Titi, 4.69°N, 8.97°E, <i>03 June 1976</i>, <i>Letouzey R.</i> 15078 (P,YA); Korup National Park, 5.31°N, 8.966°E, <i>02 July 1951</i>, <i>Olorunfemi J.</i> 30662 (K); Korup National Park between the Ndian River at PAMOL field and 25 km on transect " P ", 5.01°N, 8.833°E, <i>12 April 1985</i>, <i>Thomas D.W.</i> 4763 (BR,K,MO,P,WAG,YA); Takamanda Forest Reserve, 6.21°N, 9.433°E, <i>30 April 1987</i>, <i>Thomas D.W.</i> 7354 (MO,P,WAG).
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 131-133, DOI: 10.3897/phytokeys.207.61432
description: {"references": ["Couvreur, TLP, 2009. Monograph of the syncarpous African genera Isolona and Monodora (Annonaceae). Systematic Botany Monographs 87: 1 - 150", "Onana, JM, 2011. The vascular plants of Cameroon: A taxonomic checklist with IUCN assessments. Flore du Cameroun 39. Herbier National du Cameroun, Yaounde, Cameroon", "Cosiaux, A, Couvreur, TLP, Erkens, RHJ, 2019p. Isolona campanulata. The IUCN Red List of Threatened Species: e.T132676991A132678214. https://doi.org/10.2305/IUCN.UK.2019-3.RLTS.T132676991A132678214.en"]}