Pseudoraphis Griff. ex Pilg.
  • Notizbl. Bot. Gart. Berlin-Dahlem 10: 210 (1928) 


General Description

HABIT Perennial. Stolons absent (1), or present (6). Culms prostrate; slender (1/1); 10-29.64-50 cm long; rooting from lower nodes (4/4). Lateral branches ample (1/1). Leaf-sheath auricles absent (6), or erect (1). Ligule an eciliate membrane (4), or a ciliolate membrane (3), or a ciliate membrane (1). INFLORESCENCE Inflorescence composed of racemes; exserted (5), or embraced at base by subtending leaf (2). Racemes borne along a central axis; appressed (2), or erect (1), or ascending (2), or spreading (3); bearing 1 spikelet (3), or few fertile spikelets (2), or many spikelets (4); bearing 1 fertile spikelets on each (4), or 2 fertile spikelets on each (5), or 3 fertile spikelets on each (2), or 4 fertile spikelets on each (1), or 5-10 fertile spikelets on each (2). Rhachis angular; terminating in a barren extension; extension bristle-like. Spikelet packing abaxial; contiguous (5), or distant (2). Spikelets appressed; solitary. Fertile spikelets sessile (6), or pedicelled (1). FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 3.5-6.035-10 mm long; falling entire. Spikelet callus brief (5), or oblong (2). Rhachilla internodes brief up to lowest fertile floret (6), or elongated below proximal fertile floret (1). GLUMES Glumes shorter than spikelet (1), or reaching apex of florets (2), or exceeding apex of florets (4); thinner than fertile lemma. Lower glume oblong (1), or oblate (6); hyaline; without keels; 0 -veined. Lower glume lateral veins absent. Lower glume apex truncate (1), or obtuse (6). Upper glume lanceolate (3), or elliptic (4); membranous; without keels; 7 -veined (5), or 8-9 -veined (3), or 10-11 -veined (1), or 13-15 -veined (2). Upper glume surface smooth (6), or asperulous (1), or scabrous (2); glabrous (6), or pubescent (1), or pilose (1). Upper glume apex obtuse (1), or acuminate (1), or attenuate (3), or cuspidate (2), or caudate (1); muticous (6), or awned (1); 1 -awned (1/1). FLORETS Basal sterile florets male, or barren (1); with palea. Lemma of lower sterile floret lanceolate (1), or elliptic (6); membranous; 5-6 -veined (1/6), or 7 -veined (4/6), or 8-9 -veined (2/6), or 11-13 -veined (1/6); obtuse (1), or acute (3), or acuminate (2), or attenuate (1); muticous (6), or awned (1). Fertile florets bisexual (5), or female (2). Fertile lemma lanceolate (1), or elliptic (3), or oblong (3); membranous (1), or chartaceous (1), or cartilaginous (5); without keel; 5 -veined (3/3). Lemma apex obtuse (3), or acute (4). Palea embraced by lemma (5), or separating from lemma above (2); 1 length of lemma; membranous (1), or chartaceous (1), or cartilaginous (5); without keels. FLOWER Anthers 2 (2/6), or 3 (4/6). FRUIT Caryopsis with adherent pericarp (4/4); ellipsoid (2/3), or ovoid (1/3). Embryo 0.33 length of caryopsis. Hilum linear (1/1). DISTRIBUTION Temperate Asia (4), or Tropical Asia (5), or Australasia (3).

  Bibliography

  • 1 Govaerts, R.H.A. (2011). World checklist of selected plant families published update. Facilitated by the Trustees of the Royal Botanic Gardens, Kew.

 Information From

GrassBase - The Online World Grass Flora
http://www.kew.org/data/grasses-db/
Clayton, W.D., Vorontsova, M.S., Harman, K.T. and Williamson, H. (2006 onwards). GrassBase - The Online World Grass Flora. http://www.kew.org/data/grasses-db.html. [accessed 24 January 2012; 14:30 GMT]
  • A © Copyright The Board of Trustees, Royal Botanic Gardens, Kew.
eMonocot
http://e-monocot.org
eMonocot. (2010, 1st November). Retrieved Wednesday, 8th February, 2012, from http://e-monocot.org.
  • B Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
World Checklist of Selected Plant Families
http://apps.kew.org/wcsp/
WCSP 2014. 'World Checklist of Selected Plant Families. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet; http://apps.kew.org/wcsp/ Retrieved 2011 onwards
  • C See http://kew.org/about-kew/website-information/legal-notices/index.htm You may use data on these Terms and Conditions and on further condition that: The data is not used for commercial purposes; You may copy and retain data solely for scholarly, educational or research purposes; You may not publish our data, except for small extracts provided for illustrative purposes and duly acknowledged; You acknowledge the source of the data by the words "With the permission of the Trustees of the Royal Botanic Gardens, Kew" in a position which is reasonably prominent in view of your use of the data; Any other use of data or any other content from this website may only be made with our prior written agreement.