Monanthotaxis filamentosa Verdc., Kew Bull. 25 (1): 31 1971
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
Monanthotaxis
Monanthotaxis filamentosa

description: Monanthotaxis filamentosa (Diels) Verdc., Kew Bull. 25(1): 31, 1971 Figs 55, 56; Map 7F ≡ Popowia filamentosa Diels, Bot. Jahrb. Syst. 39(3-4): 478, 1907. = Popowia malchairii De Wild., Etudes Fl. Bangala &amp; Ubangi: 309, 1911. Type. Democratic Republic of the Congo. Sud-Ubangi, Budjala, environs de Likimi, Malchair L. 295, 25 Apr 1910: holotype: BR[BR0000008804624, BR0000008804952]. = Popowia setosa Diels, Bot. Jahrb. Syst. 53(3-5): 442, 1915. Type. Cameroon. South Region, 58 km E of Kribi, Fenda, <i>Mildbraed G.W.J. 5989</i>, 1911: lectotype, chosen by Hoekstra et al. (2021), p. 155: B[B100154095]; isolectotype: HBG[HBG502503] Type. Cameroon. South Region; Bipindi, <i>Zenker G.A. 2985</i>, Apr 1904: holotype: B not seen; isotypes: BR[BR0000008804297]; E[E00624352]; GOET[GOET005686]; HBG[HBG-502505]; K[K000198988]; L[L 0038042]; M[M0107931]; P[P00362600]; S[S07-13262]; WAG[WAG0071434]; WU[WU0025872].. Description. Liana, 10 m tall, d.b.h. up to 10 cm. Indumentum of simple hairs; old leafless branches glabrous, <b>young foliate branches densely pubescent with dense erect reddish brown hairs 0.7-1.4 mm long</b>. Leaves: petiole 3-6 mm long, 1-3 mm in diameter, densely pubescent with erect reddish brown hairs, grooved, blade inserted on top of the petiole; blade 12.5-28.6 cm long, 4.1-12.5 cm wide, obovate to oblanceolate, apex acuminate to acute, acumen 0.5-1 cm long, base rounded to subcordate, subcoriaceous, below sparsely pubescent with erect yellowish hairs when young and old, above sparsely pubescent when young, glabrous when old, discolorous, whitish below; midrib impressed, above pubescent when young and old, below densely pubescent when young and old; secondary veins 12 to 19 pairs, glabrous above; tertiary venation percurrent. Individuals bisexual; inflorescences ramiflorous on old leafless branches, leaf opposed to axillary. Flowers with 9 perianth parts in 3 whorls, 1 to 10 per inflorescence; pedicel 1-18 mm long, ca. 1 mm in diameter, pubescent with erect reddish brown hairs; in fruit 9-31 mm long, 1-2 mm in diameter; basal bract ca. 2 mm long, ca. 1 mm wide; upper bract 1-8 mm long, 1-4 mm wide; sepals 3, valvate, free, 5-10 mm long, 3-6 mm wide, elliptic to ovate, apex acute, base truncate, brown, densely pubescent outside, glabrous inside, margins flat; petals free, outer petals longer than inner, inner petals entirely covered in bud; outer petals 3, 8-22 mm long, 4.7-8.5 mm wide, ovate, apex acute to attenuate, base truncate, yellow-brown bright white towards the base and inside, margins flat, densely pubescent outside, pubescent with a glabrous base inside; inner petals 3, valvate, 6.5-14 mm long, 3-5 mm wide, elliptic to ovate, apex acute to attenuate, base truncate, yellow-brown bright white towards the base and inside, margins flat, densely pubescent outside, pubescent with a glabrous base inside; stamens 17 to 46, in 2 to 4 rows, ca. 2 mm long, linear; <b>thecae convergent apically hiding the connective apically</b>, white, <b>filament 1.3-1.9 mm long</b>; staminodes absent; carpels free, 8 to 14, ovary 2-3 mm long, stigma elongate, white, glabrous. Monocarps stipitate, stipes 8-15 mm long, 2-3 mm in diameter; monocarps 1 to 7, 110-175 mm long, 7-8 mm in diameter, moniliform, cylindrical, apex apiculate, pubescent to sparsely pubescent, verrucose, constricted around seeds when more than 1, yellow to red when ripe; seeds 1 to 7 per monocarp, 17-25 mm long, 4-5 mm in diameter, ellipsoid; aril absent. Distribution. A widespread central African species, from Cameroon to Gabon and Equatorial Guinea Democratic Republic of the Congo and Central African Republic; in Cameroon known from Central, East, Littoral, South, and South-West regions. Habitat. A common species in Cameroon; in lowland or submontane primary and old secondary rain forests, and gallery forests, on rocky soil. Altitude 100-1200 m a.s.l. Local and common names known in Cameroon. None recorded. Preliminary IUCN conservation status. Least Concern (Hoekstra et al. 2021). Uses in Cameroon. None reported. Notes. <i>Monanthotaxis filamentosa</i> is distinguished by the dense reddish brown erect pubescence on the young foliate branches and leaves, large ovoid flower buds, and stamens with large white thecae covering the apical connective and a long filament (&gt; 1.3 mm versus generally shorter than 0.5 mm). In the checklist to the plants of Lebialem (Harvey et al. 2010), the collection <i>Tchiengue 2637</i> was suggested to be a new species (sp. nov. of Bechati), but it has since been identified as <i>M. filamentosa</i> (Hoekstra et al. 2021). Specimens examined. <b>Central Region</b>: Mont Mbam Minkon on trail 5 km from Nkol Nyada village On top of small hill, 3.97°N, 11.40°E, <i>21 March 2013</i>, <i>Couvreur T.L.P.</i> 417 (MPU,WAG,YA). <b>East Region</b>: 43 km NW of Bertoua Road from Mbang to Ebaka, 4.58°N, 13.68°E, <i>19 May 1961</i>, <i>Breteler F.J.</i> 1374 (BR,K,P,U,WAG,YA); Village situé à 35 km au NNE de Moloundou, 2.29°N, 15.35°E, <i>21 April 1971</i>, <i>Letouzey R.</i> 10717 (P,YA). <b>Littoral Region</b>: Path above village summit Likombe village Etinde, 4.21°N, 9.166°E, <i>28 February 1995</i>, <i>Etuge M.</i> 1191 (K); Nsoung- 1 km from village towards east river Meduya, 4.96°N, 9.802°E, <i>21 March 2003</i>, <i>Etuge M.</i> 4919 (K). <b>South Region</b>: Campo Ma’an National Park 11 km on trail from Ebinanemeyong village on road 7 km from Nyabessan to Campo town, 2.49°N, 10.34°E, <i>12 February 2015</i>, <i>Couvreur T.L.P.</i> 690 (WAG,YA); Campo Ma’an National Park 11 km on trail from Ebinanemeyong village on road 7 km from Nyabessan to Campo town, 2.47°N, 10.33°E, <i>13 February 2015</i>, <i>Couvreur T.L.P.</i> 695 (WAG,YA); 58 km E of Kribi Fenda, 2.8°N, 10.4°E, <i>01 January 1911</i>, <i>Mildbraed G.W.J.</i> 5989 (B,HBG); Bipindi, 3.08°N, 10.41°E, <i>01 April 1904</i>, <i>Zenker G.A.</i> 2985 (E,L,P,WAG). <b>South-West Region</b>: Nyasoso, 4.81°N, 9.683°E, <i>06 February 1995</i>, <i>Cable S.</i> 1185 (K,YA); Upper Boando, 4.06°N, 9.15°E, <i>15 March 1995</i>, <i>Cable S.</i> 1581 (K,YA); Kupe village, 4.78°N, 9.700°E, <i>23 May 1996</i>, <i>Cable S.</i> 2575 (K,YA); slopes of Mount Cameroon on the Bokwango trail near Bokwango village 4 km south west of Bu 4.12°N, 9.186°E, <i>23 March 2016</i>, <i>Couvreur T.L.P.</i> 989 (WAG,YA); Nyasoso, 4.83°N, 9.683°E, <i>27 February 1996</i>, <i>Etuge M.</i> 1729 (K,WAG,YA); Nyasoso, 4.83°N, 9.683°E, <i>24 June 1996</i>, <i>Etuge M.</i> 2377 (K,WAG,YA); Bime rock face, 5.07°N, 9.727°E, <i>12 November 2001</i>, <i>Etuge M.</i> 4531 (K); Entre Ndikoko et Ile 35 km N Kumba, 4.56°N, 9.23°E, <i>26 March 1976</i>, <i>Letouzey R.</i> 14591 (BENIN,GC,IFAN,MO,P, TOGO,YA); Cameroon mountain at Bu 4.15°N, 9.233°E, <i>01 January 1930</i>, <i>Maitland T.D.</i> 566 (K); Near the path from village Bechati to village Fossimondi, 5.65°N, 9.933°E, <i>26 September 2006</i>, <i>Tchiengue B.</i> 2816 (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 198-201, DOI: 10.3897/phytokeys.207.61432
description: {"references": ["Hoekstra, PH, Wieringa, JJ, Maas, JM, Chatrou, LW, 2021. Revision of the African species of Monanthotaxis (Annonaceae). Blumea 66: 107 - 221, DOI: https://doi.org/10.3767/blumea.2021.66.02.01", "Harvey, Y, Tchiengue, B, Cheek, M, 2010. The plants of Lebialem Highlands, (Bechati-Fosimondi-Besali) Cameroon: a conservation checklist. Kew Publishing, Kew, U.K."]}