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Issue: Vol. 494 No. 1: 31 March 2021
Type: Correspondence
Published: 2021-03-31
DOI: 10.11646/phytotaxa.494.1.15
Page range: 173–176
Abstract views: 35
PDF downloaded: 1

Lectotypification of names in Duthiea (Poaceae)

Plant Diversity, Systematics & Herbarium Division, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow226001, India. Deen Dayal Upadhyaya Gorakhpur University, Gorakhpur 273009, India
Plant Diversity, Systematics & Herbarium Division, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow226001, India.
Plant Diversity, Systematics & Herbarium Division, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow226001, India.
Plant Diversity, Systematics & Herbarium Division, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow226001, India. Deen Dayal Upadhyaya Gorakhpur University, Gorakhpur 273009, India.
Deen Dayal Upadhyaya Gorakhpur University, Gorakhpur 273009, India.
Plant Diversity, Systematics & Herbarium Division, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow226001, India.
Duthiea bromoides Duthiea oligostachya lectotypification Poaceae Monocots

Abstract

The genus, Duthiea Hackel (1895: 200) consists of three species, viz. D. brachypodium (P.Candargy 1901: 65) Keng & Keng (1965: 182), D. bromoides Hackel (1895: 200) and D. oligostachya (Munro ex Aitchison 1880: 108) Stapf (1896: sub Pl. 2474), distributed mainly in mountainous zones of Afghanistan to western China (Kellogg 2015). Duthiea is characterized by having pedicelled spikelets arranged to congested one-sided racemes; rachilla disarticulating above the glumes and between the florets; glumes equal to sub-equal, elliptic or lanceolate, with 5–7 nerves, persistent; lemma hirsute or villous with bifid apex and geniculate single awn with twisted column arising from the sinus of lemma; lodicules absent; ovary obovoid; style single, tomentose, longer or shorter than the stigmas; stigmas 2, terminally exerted from the floret; caryopsis cylindrical, covered with forwardly directed bristles (Bor 1953, 1960).