Pseudophleum M. Dogan
Sometimes referred to Phleum (P. gibbum Boiss.)
Habit, vegetative morphology. Annual. Culms 5–20 cm high; herbaceous; unbranched above. Culm nodes glabrous. The shoots not aromatic. Leaves not basally aggregated; non-auriculate; without auricular setae. Sheath margins free. Leaf blades narrow; 0.8–1.5 mm wide (0.8–5 cm long); not setaceous (usually convolute); usually rolled (convolute); not pseudopetiolate; without cross venation; persistent; rolled in bud; ligule present; an unfringed membrane; not truncate (acute); 2.5–4 mm long.
Reproductive organization. Plants bisexual, with bisexual spikelets; with hermaphrodite florets.
Inflorescence. Inflorescence determinate; without pseudospikelets; paniculate; contracted; more or less ovoid to spicate; without capillary branchlets; non-digitate; espatheate; not comprising ‘partial inflorescences’ and foliar organs. Spikelet-bearing axes persistent. Spikelets not secund; shortly pedicellate, or subsessile.
Female-fertile spikelets. Spikelets 2.5–3 mm long (pale greenish); compressed laterally; disarticulating above the glumes. Rachilla terminated by a female-fertile floret (?). Hairy callus absent.
Glumes two; relatively large; very unequal (or at least, supposedly more so than in Phleum); shorter than the spikelets; shorter than the adjacent lemmas; joined (shortly, at base); hairless (rather leathery); pointed (acute); awnless; carinate; without a median keel-wing; similar (gibbous, narrow at base). Lower glume 3 nerved. Upper glume 3 nerved. Spikelets with female-fertile florets only; without proximal incomplete florets.
Female-fertile florets 1. Lemmas similar in texture to the glumes (leathery); not becoming indurated; mucronate (terminally, the mucro to 0.6 mm long); hairy (dorsally covered with setules); carinate (in upper half), or non-carinate; without a germination flap; 5 nerved. Palea present; relatively long; apically notched; awnless, without apical setae; not indurated; 2-nerved; 2-keeled. Palea keels hairy (ciliate). Lodicules present; 2; free; membranous; glabrous; not toothed. Stamens 3. Anthers not penicillate; without an apically prolonged connective. Ovary glabrous; without a conspicuous apical appendage. Styles free to their bases. Stigmas 2.
Fruit, embryo and seedling. Fruit small (1.3 mm long). Hilum short (elliptical). Embryo small.
Taxonomy. Pooideae; Poodae; Aveneae.
Distribution, ecology, phytogeography. 1 species; Turkey. Species of open habitats.
Holarctic. Tethyan. Mediterranean.
Special comments. Anatomical data wanting.
Cite this publication as: Watson, L., and Dallwitz, M. J. (1992 onwards). ‘Grass Genera of the World: Descriptions, Illustrations, Identification, and Information Retrieval; including Synonyms, Morphology, Anatomy, Physiology, Phytochemistry, Cytology, Classification, Pathogens, World and Local Distribution, and References.’ http://biodiversity.uno.edu/delta/. Version: 18th August 1999. Dallwitz (1980), Dallwitz, Paine and Zurcher (1993 onwards, 1998), and Watson and Dallwitz (1994), and Watson, Dallwitz, and Johnston (1986) should also be cited (see References).