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[[File:Map Aphanocalyx heitzii.gif|thumb|]][[File:Linedrawing Aphanocalyx heitzii.gif|thumb|1, base of bole; 2, part of flowering twig; 3, flower; 4, fruit. Redrawn and adapted by Iskak Syamsudin]][[File:Aphanocalyx heitzii J. Wieringa 1.jpg|thumb|base of bole]][[File:Aphanocalyx heitzii WAG9000084.jpg|thumb|habit]]two photos missing[[File:Aphanocalyx heitzii M.E.Bakker xs.jpg|thumb|wood in transverse section]][[File:Aphanocalyx heitzii M.E.Bakker tls.jpg|thumb|wood in tangential section]]<big>''[[Aphanocalyx heitzii]]'' (Pellegr.) Wieringa</big>
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{{DISPLAYTITLE:''Aphanocalyx heitzii'' (PROTA)}}
:Protologue: Wageningen Agric. Univ. Pap. 99(4): 179 (1999).
:Family: Caesalpiniaceae (Leguminosae - Caesalpinioideae)
== Synonyms ==
''Aphanocalyx'' comprises 14 species and occurs from Sierra Leone to western Côte d’Ivoire and from Cameroon to western Tanzania, northern Angola and northern Zambia. It is most closely related to ''Bikinia'' and ''Tetraberlinia''.
=== ''Aphanocalyx microphyllus'' ===''[[Aphanocalyx microphyllus]]'' (Harms) Wieringa is a small to large tree up to 45 m tall with often contorted bole up to 100(–160) cm in diameter. It comprises 2 subspecies, subsp. ''microphyllus'' (synonym: ''Monopetalanthus microphyllus'' Harms) occurring from Cameroon east to eastern DR Congo and south southern DR Congo and northern Angola, and subsp. ''compactus'' (Hutch. ex Lane-Poole) Wieringa (synonym: ''Monopetalanthus compactus'' Hutch. ex Lane-Poole) occurring in Sierra Leone, Liberia and south-western Côte d’Ivoire. The comparatively heavy wood of subsp. ''microphyllus'' is used in DR Congo for house construction, joinery, railway sleepers and axe-handles, and as firewood. No uses have been recorded for subsp. ''compactus'', but its wood has been classified as promising.
=== ''Aphanocalyx pteridophyllus'' ===''[[Aphanocalyx pteridophyllus]]'' (Harms) Wieringa (synonym: ''Monopetalanthus pteridophyllus'' Harms) is a small to medium-sized tree up to 30 m tall with bole up to 45(–75) cm in diameter, occurring in Sierra Leone and Liberia. The boles are used to make canoes, whereas the seeds are reported to be edible and pulverized bark is applied to the skin to treat onchocerciasis.
== Anatomy ==
Wood-anatomical description (IAWA hardwood codes):
*Growth rings: 1: growth ring boundaries distinct; 2: growth ring boundaries indistinct or absent. *Vessels: 5: wood diffuse-porous; 13: simple perforation plates; 22: intervessel pits alternate; 23: shape of alternate pits polygonal; 25: intervessel pits small (4–7 μm); 26: intervessel pits medium (7–10 μm); (27: intervessel pits large (<font size="1">≥</font> 10 μm)); 29: vestured pits; 30: vessel-ray pits with distinct borders; similar to intervessel pits in size and shape throughout the ray cell; 42: mean tangential diameter of vessel lumina 100–200 μm; 43: mean tangential diameter of vessel lumina <font size="1">≥</font> 200 μm; 46: <font size="1">≤</font> 5 vessels per square millimetre; (47: 5–20 vessels per square millimetre); 58: gums and other deposits in heartwood vessels. *Tracheids and fibres: 61: fibres with simple to minutely bordered pits; 66: non-septate fibres present; 69: fibres thin- to thick-walled. *Axial parenchyma: 79: axial parenchyma vasicentric; 80: axial parenchyma aliform; (81: axial parenchyma lozenge-aliform); 83: axial parenchyma confluent; 89: axial parenchyma in marginal or in seemingly marginal bands; 92: four (3–4) cells per parenchyma strand; 93: eight (5–8) cells per parenchyma strand. *Rays: 96: rays exclusively uniseriate; (97: ray width 1–3 cells); 104: all ray cells procumbent; 106: body ray cells procumbent with one row of upright and/or square marginal cells; 115: 4–12 rays per mm; 116: <font size="1">≥</font> 12 rays per mm. *Secretory elements and cambial variants: (131: intercellular canals of traumatic origin). *Mineral inclusions: 136: prismatic crystals present; 142: prismatic crystals in chambered axial parenchyma cells.
(C. Essien, P. Baas & H. Beeckman)
== Author(s) ==
* C.H. Bosch , PROTA Network Office Europe, Wageningen University, P.O. Box 341, 6700 AH Wageningen, Netherlands
== Correct citation of this article ==
Bosch, C.H., 2011. '''Aphanocalyx heitzii''' (Pellegr.) Wieringa. [Internet] Record from PROTA4U. In: Lemmens, R.H.M.J., Louppe, D. & Oteng-Amoako, A.A. (Editors). PROTA (Plant Resources of Tropical Africa / Ressources végétales de l’Afrique tropicale), Wageningen, Netherlands. <http://www.prota4u.org/search.asp>. Accessed {{CURRENTDAY}} {{CURRENTMONTHNAME}} {{CURRENTYEAR}}.
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[[Category:PROTA prov]][[Category:Timbers (PROTA)]]