1. Family: Poaceae Barnhart
    1. Leptaspis R.Br.

      1. This genus is accepted, and its native range is Tropical Old World to SW. Pacific.

    [FZ]

    Gramineae, E. Launert. Flora Zambesiaca 10:1. 1971

    Palea
    Palea shorter than the lemma, membranous, distinctly 2-keeled, 2-nerved, narrowly oblong, with the apex bidentate.
    Stamens
    Stamens 6; filaments rather short; anthers linear.
    Spikelets
    Hermaphrodite spikelets subsessile, rather conspicuous, ovoid or conchiform, inflated. Spikelets 1-flowered, monoecious, heteromorphous, unisexual. Male spikelets usually much smaller and less conspicuous than the hermaphrodite.
    Glume
    Glumes 2, subequal, much shorter than the spikelet. Glumes 2, much smaller than the spikelet, subequal, membranous, ovate, 5-7-nerved, usually spreading.
    Lemma
    Lemma with the margins connate (thus utricle-like) with an apical or lateral porus, inflated, prominently nerved and usually longitudinally ribbed, more or less densely covered with stiff short hooked hairs. Lemma similar to the glumes but with more nerves, cymbiform.
    Flowers
    Palea completely enclosed by the lemma, longer than the utricle and often appearing at the porus, very delicate, linear, 2-keeled, with the apex bidentate.
    Lodicules
    Lodicules very small to nil.
    Ovary
    Ovary small, narrowly ovoid, gibbous; style simple; stigmas 3, rather long, filiform, plumose, exserted through the porus of the lemma.
    Fruits
    Caryopsis free from the lemma, oblong in outline, compressed; hilum linear, within a longitudinal groove; embryo very small.
    Habit
    Perennial rhizomatous bamboo-like grasses.
    Leaf lamina
    Leaf-laminas large, asymmetric, with a typical slanting venation, tessellate, born on a twisted (180°) pseudopetiole.
    Ligules
    Ligule scarious, often fringed.
    Inflorescences
    Inflorescence a loose panicle, usually terminal, containing male and female spike-lets, with the females in a group at the base and the male or males terminal on the branchlets.
    [GB]

    nonem

    Habit
    Perennial. Rhizomes absent (1), or elongated (2). Culms erect (2), or geniculately ascending (1); 20-46.66-100 cm long; rooting from lower nodes (1/1). Lateral branches lacking (1/1). Ligule a ciliolate membrane. Leaf-blade base with a brief petiole-like connection to sheath (2), or with a false petiole (1). Leaf-blades linear (1), or lanceolate (1), or oblong (1). Leaf-blade venation slanting obliquely from midrib; with distinct cross veins.
    Inflorescences
    Monoecious; with male and female spikelets in the same inflorescence. Inflorescence a panicle, or composed of racemes (1). Panicle open (2), or contracted (1). Primary panicle branches not whorled (2), or whorled at most nodes (1). Racemes borne along a central axis (1/1); appressed (1/1). Spikelet packing distant (1/1). Sexes mixed. Spikelets in pairs. Fertile spikelets sessile (1), or pedicelled (2); 1 in the cluster. Male spikelets pedicelled; 1 in a cluster. Pedicels linear (2/2).
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets orbicular; cochleate; laterally compressed; gibbous; 2.49-4.681-7 mm long; breaking up at maturity; disarticulating below each fertile floret. Male spikelets similar to female but less developed. Male spikelet glumes 2.
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets orbicular; cochleate; laterally compressed; gibbous; 2.49-4.681-7 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes persistent; shorter than spikelet (2), or reaching apex of florets (1); thinner than fertile lemma. Lower glume ovate; 0.66-0.8867-1 length of upper glume; membranous (2), or herbaceous (1); without keels; 1 -veined. Lower glume lateral veins absent. Lower glume surface pubescent. Lower glume apex cuspidate. Upper glume ovate; 0.3-0.6167-1 length of adjacent fertile lemma; membranous (2), or herbaceous (1); without keels; 1 -veined, or 2-3 -veined (2). Upper glume surface pubescent; with hooked hairs. Upper glume apex cuspidate.
    Florets
    Fertile florets female. Fertile lemma orbicular; gibbous; chartaceous; without keel; 5 -veined (2), or 9 -veined (1). Lemma lateral veins ribbed. Lemma surface pubescent; with hooked hairs. Lemma margins closed except for an apical pore; covering most of palea. Lemma apex obtuse. Palea 0.5-0.58-0.66 length of lemma; 2 -veined (1/1). Palea keels contiguous above a sulcus; eciliate (2), or puberulous (1).
    Flowers
    Lodicules absent. Anthers 6. Stigmas 3; pubescent. Ovary pubescent all over (2/2).
    Fruits
    Caryopsis with adherent pericarp.
    Male
    Male spikelets similar to female but less developed. Male spikelet glumes 2.
    Distribution
    Africa (1), or Temperate Asia (1), or Tropical Asia, or Australasia (1), or Pacific (2).
    [FTEA]

    Gramineae, W. D. Clayton, S. M. Phillips And S. A. Renvoize. Flora of Tropical East Africa. 1974

    Spikelets
    Lemma of ♀ spikelet shell- or urn-shaped, closed except for a tiny pore through which the stigmas and tip of the palea protrude.
    Female
    Lemma of ♀ spikelet shell- or urn-shaped, closed except for a tiny pore through which the stigmas and tip of the palea protrude.

    Images

    Distribution

    Native to:

    Cameroon, Central African Repu, Comoros, Congo, Ethiopia, Fiji, Gabon, Ghana, Guinea, Gulf of Guinea Is., Ivory Coast, Jawa, Kenya, Lesser Sunda Is., Liberia, Madagascar, Malaya, Mozambique, New Caledonia, New Guinea, Nigeria, Philippines, Queensland, Sierra Leone, Solomon Is., Sri Lanka, Sudan, Sulawesi, Sumatera, Taiwan, Tanzania, Thailand, Togo, Uganda, Zaïre, Zimbabwe

    Leptaspis R.Br. appears in other Kew resources:

    First published in Prodr. Fl. Nov. Holland.: 211 (1810)

    Literature

    Flora of West Tropical Africa
    • Prod. 211 (1810).
    Flora Zambesiaca
    • Prodr.: 211 (1810).
    Flora of Tropical East Africa
    • Prodr.: 211 (1810)

    Sources

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

    Flora of Tropical East Africa
    Flora of Tropical East Africa
    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