Dichelachne micrantha (Cav.) Domin
Details
Dichelachne micrantha (Cav.) Domin, Biblioth. Bot. 85: 358 (1915)
Nomenclature
(Cav.) Domin
Cav.
Domin
1915
358
ICN
species
Dichelachne micrantha
Classification
Vernacular names
Descriptions
Dichelachne micrantha (Cav.) Domin
2n = 70
2n = 70
Dichelachne micrantha (Cav.) Domin
Stout, rather rigid, extravaginal tufts, leaves < stiff, erect culms. Sheaths stramineous to dull brown, with minute, appressed, scattered hairs; ligule 0.3-0.5-(1) mm long, membranous, minutely ciliate across truncate top, scabrous on back, often asymmetric; lamina to 20 cm long, 1.5-2.5 mm wide, rather stiff, flat, tapered towards tip, minutely scabrous on margins and along nerves on adaxial surface towards tip, sparingly minutely scabrous on abaxial surface. Culms 40-100 cm long, minutely scaberulous throughout, or glabrous, but minutely scaberulous below panicle, variously purpled. Panicle 10-25 cm long, erect, spike-like, often purplish, branches spreading at first; rachis, branchlets and pedicels closely short-scabrous; spikelets numerous, close-set on branchlets, rather delicate. Glumes narrow-lanceolate, acute to acuminate, hyaline apart from scaberulous midnerve, often suffused with purple, lower glume 3- 4 mm long, ± = lemma, upper 3.5-5 mm long, > lemma. Lemma 2.5-4 mm long, sometimes purpled; awn 12-18 mm long, very fine, column straight, awn curving above and twisted 2-3 times along whole length, inserted 0.6-0.9 mm below minutely bifid tip. Palea 2-3 mm long, narrowlinear, keels scabrous above, tip ciliate. Callus hairs 0.3-0.5 mm long. Rachilla prolongation c. 0.05 mm long. Lodicules (0.4)-0.6-0.8 mm long, hyaline, elliptic-oblong, unequally bilobed, occasionally minutely ciliate. Anthers 1, 1.2-1.4 mm long in chasmogamous flowers, 0.6-0.8 mm long in cleistogamous flowers. Caryopsis 2.0-2.3 × 0.3- 0.4 mm; embryo 0.2-0.4 mm long; hilum 1.8- 1.9 mm long.
Dichelachne micrantha (Cav.) Domin
Stout, rather rigid, extravaginal tufts, leaves < stiff, erect culms. Leaf-sheath stramineous to dull brown, with minute, appressed, scattered hairs. Ligule 0.3-0.5-(1) mm, membranous, truncate, minutely ciliate, abaxially scabrid, often asymmetric. Leaf-blade to 20 cm × 1.5-2.5 mm, rather stiff, flat, tapered towards tip, abaxially sparingly minutely scabrid, adaxially scabrid on ribs towards tip, minutely scabrid on margins. Culm 40-100 cm, internodes minutely scaberulous throughout, or glabrous but minutely scaberulous below panicle, variously purplish. Panicle 10-25 cm, erect, spike-like, often purplish, branches spreading at first; rachis, branchlets and pedicels closely short-scabrid. Spikelets numerous, close-set on branchlets, rather delicate. Glumes narrow-lanceolate, acute to acuminate, often suffused with purple; lower 3-4 mm, ≈ lemma, upper 3.5-5 mm, > lemma. Lemma 2.5-4 mm, sometimes purplish; awn 12-18 mm, very fine, column straight, awn curving above and twisted 2-3 times along whole length, inserted 0.6-0.9 mm below minutely bifid lemma-tip. Palea 2-3 mm, narrow-linear, keels scabrid above, tip ciliate. Callus hairs 0.3-0.5 mm. Rachilla prolongation c. 0.05 mm. Lodicules (0.4)-0.6-0.8 mm, hyaline, elliptic-oblong, unequally bilobed, occasionally minutely ciliate. Anthers 1, 1.2-1.4 mm in chasmogamous flowers, 0.6-0.8 mm in cleistogamous flowers. Caryopsis 2.0-2.3 × 0.3-0.4 mm; embryo 0.2-0.4 mm; hilum 1.8-1.9 mm.
Taxonomic concepts
Dichelachne micrantha (Cav.) Domin
Dichelachne micrantha (Cav.) Domin
Dichelachne micrantha (Cav.) Domin
Dichelachne micrantha (Cav.) Domin
Dichelachne micrantha (Cav.) Domin
Dichelachne micrantha (Cav.) Domin
Dichelachne micrantha (Cav.) Domin
Dichelachne micrantha (Cav.) Domin
Dichelachne micrantha (Cav.) Domin
Dichelachne micrantha (Cav.) Domin
Dichelachne micrantha (Cav.) Domin
Dichelachne micrantha (Cav.) Domin
Dichelachne micrantha (Cav.) Domin
Dichelachne micrantha (Cav.) Domin
Dichelachne micrantha (Cav.) Domin
Dichelachne micrantha (Cav.) Domin
Dichelachne micrantha (Cav.) Domin
Dichelachne micrantha (Cav.) Domin
Collections
Identification keys
Metadata
216f5434-14ca-4479-93e9-10201754aef7
scientific name
Names_Plants
1 January 2000
4 March 2022