1. Family: Poaceae Barnhart
    1. Anadelphia Hack.

      1. This genus is accepted, and its native range is W. Tropical Africa to Chad, Zambia to Mozambique.

    [FZ]

    Gramineae, T. A. Cope. Flora Zambesiaca 10:4. 2002

    Habit
    Annuals or perennials.
    Ligules
    Ligule a short ciliolate membrane; leaf laminas linear.
    Inflorescences
    Inflorescence a solitary raceme, exserted from or enclosed by a narrow spatheole and gathered into a scanty or copious false panicle; raceme loose, with few spikelets (sometimes only 1), without homogamous spikelet pairs; internodes and pedicels long and slender.
    Fruits
    Caryopsis narrowly ellipsoid to subcylindrical.
    Spikelets
    Pedicelled spikelets as long as the sessile, linear-lanceolate, acuminate, usually glabrous, with a narrowly oblong to linear callus, sometimes the spikelet much reduced or quite absent and its pedicel likewise much reduced. Sessile spikelet slightly dorsally compressed to subterete; callus usually pungent, applied obliquely to the apex of the internode with its tip free; inferior glume usually not grooved on the back (grooved in A. scyphofera); superior glume usually awned; inferior floret reduced to a hyaline lemma; superior lemma bilobed, passing between the lobes into a glabrous to pubescent awn.
    [GB]

    nonem

    Habit
    Annual (9), or perennial (5). Culms erect (5/6), or geniculately ascending (1/6); 10-75.56-200 cm long. Leaf-sheath auricles absent (13), or erect (1). Ligule an eciliate membrane (3), or a ciliolate membrane (11). Leaf-blades filiform (1), or linear (13); firm (12), or flaccid (2).
    Inflorescences
    Synflorescence compound; scanty (4), or linear (4), or paniculate (5), or fastigiate (1). Inflorescence composed of racemes (8), or comprising only a few spikelets (6); terminal and axillary; subtended by a spatheole; exserted (6), or enclosed (8). Spatheole linear (13), or lanceolate (1); scarious. Peduncle expanded into a conical flask at apex (1/1). Racemes single (8/8); bearing few fertile spikelets (8/8); bearing 2 fertile spikelets on each (5/8), or 3 fertile spikelets on each (3/8), or 4 fertile spikelets on each (4/8), or 5-6 fertile spikelets on each (2/8), or 7-10 fertile spikelets on each (1/8). Rhachis fragile at the nodes (8/8). Spikelet packing lax (8/8). Rhachis internodes filiform (8/8). Rhachis internode tip oblique (8/8). Spikelets in pairs (8), or in threes (6). Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 1 in the cluster (8), or 2 in the cluster (6). Pedicels filiform.
    Sterile
    Companion sterile spikelets represented by barren pedicels (8), or well-developed (11); separately deciduous (11/11). Companion sterile spikelet callus oblong (4/11), or cuneate (5/11), or linear (3/11). Companion sterile spikelet glumes muticous (5/8), or mucronate (2/8), or awned (3/8).
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets linear (5), or lanceolate (10), or oblong (2); subterete (9), or dorsally compressed (5); 3.5-6.66-13 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus brief (2), or square (1), or oblong (1), or cuneate (6), or linear (5); pubescent (6), or pilose (6), or bearded (2); base truncate (1), or obtuse (4), or acute (2), or pungent (8); attached obliquely. Companion sterile spikelets represented by barren pedicels (8), or well-developed (11); separately deciduous (11/11). Companion sterile spikelet callus oblong (4/11), or cuneate (5/11), or linear (3/11). Companion sterile spikelet glumes muticous (5/8), or mucronate (2/8), or awned (3/8).
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets linear (5), or lanceolate (10), or oblong (2); subterete (9), or dorsally compressed (5); 3.5-6.66-13 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus brief (2), or square (1), or oblong (1), or cuneate (6), or linear (5); pubescent (6), or pilose (6), or bearded (2); base truncate (1), or obtuse (4), or acute (2), or pungent (8); attached obliquely.
    Glume
    Glumes exceeding apex of florets; firmer than fertile lemma. Lower glume oblong; chartaceous (4), or coriaceous (10); without keels; 4 -veined (1), or 5 -veined (2), or 6 -veined (11), or 7 -veined (13), or 8 -veined (2), or 9 -veined (1). Lower glume lateral veins obscure (9), or distinct (5). Lower glume surface convex (13), or with a longitudinal median groove (1); smooth (11), or asperulous (3); glabrous (11), or puberulous (1), or pubescent (1), or pilose (1). Lower glume apex entire (5), or dentate (9); 2 -fid (9/9); emarginate (1/5), or truncate (3/5), or obtuse (2/5); muticous (11), or mucronate (1), or awned (2). Upper glume lanceolate (1), or oblong (13); coriaceous (3/3); without keels; 1 -veined (5/9), or 2 -veined (4/9), or 3 -veined (8/9). Upper glume apex entire (10), or dentate (4); 2 -fid (3/4), or 3 -fid (1/4); emarginate (1/5), or truncate (1/5), or obtuse (1/5), or acute (2/5); muticous (3), or mucronate (1), or awned; 1 -awned.
    Florets
    Basal sterile florets male (1), or barren (13); with palea (1), or without significant palea (13). Lemma of lower sterile floret lanceolate (2), or oblong (12); 1 length of fertile lemma; hyaline; 0 -veined (3), or 1 -veined (2), or 2 -veined (11); obtuse (2/2). Fertile lemma linear (11), or lanceolate (1), or oblong (2); hyaline (13), or membranous (1); without keel; 1 -veined (9/9). Lemma margins eciliate (13), or ciliate (1). Lemma apex dentate (2), or lobed (12); 2 -fid; incised 0.2-0.3775-0.8 of lemma length; awned; 1 -awned. Principal lemma awn from a sinus; geniculate (11), or bigeniculate (3). Palea absent or minute.
    Flowers
    Lodicules 2 (3/3); fleshy (2/2); truncate (3/3). Anthers 3 (9/9).
    Distribution
    Africa.

    Images

    Distribution

    Native to:

    Benin, Burkina, Cameroon, Central African Repu, Chad, Congo, Gabon, Gambia, Ghana, Guinea, Guinea-Bissau, Ivory Coast, Liberia, Mali, Mauritania, Mozambique, Niger, Nigeria, Senegal, Sierra Leone, Togo, Zambia, Zaïre

    Anadelphia Hack. appears in other Kew resources:

    First published in Bot. Jahrb. Syst. 6: 240 (1885)

    Accepted by

    • Govaerts, R. (1995). World Checklist of Seed Plants 1(1, 2): 1-483, 1-529. MIM, Deurne.

    Literature

    Flora of West Tropical Africa
    • Clayton in Kew Bull. 20: 275 (1966).
    • Jacques-Félix in Rev. Bot. Appliq. 30: 177
    • F.T.A. 9: 388 (1919)
    • in Engl., Bot. Jahrb. 6: 240 (1885)
    Flora Zambesiaca
    • Clayton in Kew Bull. 20: 275–285 (1966).
    • in Bot. Jahrb. Syst. 6: 240 (1885).

    Sources

    Flora Zambesiaca
    Flora Zambesiaca
    http://creativecommons.org/licenses/by-nc-sa/3.0

    GrassBase - The Online World Grass Flora
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2018. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2018. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0