Agrostis boormanii Vickery,
Contr. New South Wales Natl Herb. 1: 105 (1941).
Agrostis boormanii Vickery,
Contr. New South Wales Natl Herb. 1: 105 (1941).
T: Peak Hills, Harvey Ranges, N.S.W., Nov. 1905, J.L.Boorman; T: K, NSW
Vegetative form. Slender, annual, erect or geniculate, caespitose. Culms to 30 cm high, 1-2 noded. Mid-culm nodes glabrous. Mid-culm internodes glabrous or scabrous (below the node). Leaves non-auriculate. Basal leaf sheaths not keeled, terete, scabrous. Ligule c. 3 mm long, membranous, obtuse, laciniate, abaxially glabrous. Leaf blades linear and filiform, 50-100 mm long, 1-1.5 mm wide; adaxially scabrous, shallowly grooved; abaxially scabrous (?); with margins scabrous, apices acuminose; convolute in bud.
Reproductive organization. Plants bisexual. Incomplete spikelets absent. Inflorescence of chasmogamous spikelets.
Inflorescence. Inflorescence a panicle, green and purple, erect, contracted, oblong to ovate. Rachides scabrous. Primary inflorescence branches scabrous; paired or clustered, narrowly spreading (c. erect; bearing spikelets almost to the base), filiform.
Hermaphrodite (`perfect') spikelets. Hermaphrodite spikelets pedicellate, c. 2 mm long, laterally compressed, not disarticulating as a separate unit, disarticulating above the glumes. Pedicels slender, scabrous. Glumes two per spikelet, not diverging from the spikelets, similar, unequal in length, exceeding the florets, longer than the proximal lemma. Lower glume membranous, keeled, acute, muticous, apically margin ciliolate; 1 veined, midvein scabrous; intercostal regions glabrous, or intercostal regions scaberulous. Upper glume membranous, keeled, acute, muticous, apically margin ciliolate; 1 veined, midvein scabrous; intercostal regions glabrous, or intercostal regions scaberulous. Rudimentary florets absent. Incomplete florets absent. Hermaphrodite florets 1 per spikelet. Rachilla not apically prolonged. Callus present, blunt. Lemma less firm than the glumes, ovate, 1.2-1.5 mm long, membranous, not keeled, truncate, awned. Lemma veins glabrous; intercostal regions glabrous. Awns 1, fine, median. Median awn much longer than the body of the lemmas (1.5-2 times the lemma), dorsal, arising from the mid-point of the lemma. Palea absent. Lodicules 2, hyaline, ovate. Stamens 3. Anthers c. 0.3 mm long. Ovary glabrous. Styles 2, free to their bases.
Fruit. Fruit elliptical.
Distribution. Endemic. New South Wales.
Ecology. Flowers spring.
Classification. Pooideae; Poodae; Aveneae.
References. Morphology: Jacobs & Hastings (1994); Vickery 106 (1941).
Cite this publication as:
C.M. Weiller, M.J.
Henwood, J. Lenz and L. Watson (1995 onwards). `Pooideae (Poaceae) in
Australia - Descriptions and Illustrations'. URL
http://muse.bio.cornell.edu/delta/
Dallwitz
(1980) and Dallwitz, Paine and Zurcher (1993)
should also be cited.