Enrothia polyclada (Müll. Hal.) Ignatov & Fedosov 2019

Fedosov, V. E. & Ignatov, M. S., 2019, Enrothia, a new genus of Neckeraceae (Bryophyta) from East Asia, Arctoa 28 (1), pp. 12-17 : 16

Enrothia polyclada (Müll. Hal.) Ignatov & Fedosov , comb. nov.

Basionym: Neckera polyclada Müll. Hal., Nuovo Giorn. Bot. Ital., 1896 . n. s. 3: 114. 1896.

Protologue: [ China. Shaanxi], Zu-lu, in medio monte Kuan-tou-san, Jul. sterilis [1894, Giraldi].

Lectotype: Bryotheca E. Levier , Neckera polyclada C. Müll., Nuovo Giornale Botanico Italiano, 1986 p. 114 , China interior, Provincia Schen-si sept., Zu-lu in valle Lao-y-san, Aug. 1894 legit Rev. Jos. Giraldi, determ. Prof. C. Müller sub. n° 897” ( FI FI055514 ). Fig. 3 .

Isolectotypes: FI FI055515 !, FI055523 !, H-BR2874002! and LE!.

Notes of lectotypification: FI herbarium has three syntypes from Zu-lu , C. Müller n° 897 and small differences in label content; FI055514 , is selected as a best developed large plant .

Plants medium-sized to robust, in loose mats, pale or yellowish-green, slightly glossy. Primary stems creeping. Secondary stems ascending, 2–5(–10) cm long, 2–4 mm wide with leaves, obtuse at the apex, pinnately branched, branches ca. 5–7 mm long, sometimes flagelliform at apex and then being 5–10(–20) mm long, often naked due to fallen caducous leaves, but leaves at the very ends of such tiny shoots undetached; secondary stem and branches subcomplanately foliate; central strand absent, proximal branch leaves somewhat spaced from the branch initials; axillary hairs up to 180 mm, 12 mm, brown throughout. Leaves on secondary stems spreading oblong-lingulate, 1.6–2.0× 0.6–0.8 mm, weakly concave, undulate distally, in smaller leaves indistinctly so, almost symmetric, widely acute to subobtuse, margins serrulate from apex to midleaf, subentire or minutely crenulate at leaf base, incurved at base on one side; costa single, extending to 2/3–3/4 of leaf length; laminal cells with moderately thickened porose walls, upper laminal cells ovate-rhomboidal, 15– 20×10–14 µm, median laminal cells oblong, irregular in size, 20–40×8–15 µm, basal juxtacostal laminal cells linear, 35–60×10–14 µm, basal marginal cells subquadrate to short rectangular, forming small alar group. Dioicous. Capsules immersed (according to Wu (2011) and BM image of BM000844653654).

Images available on-line: Schen-si Giraldi Jul. 1894. Liku tsui, C. Müller # 945 ( BM000987870 ; BM000844653 ). Sichuan, Pratt , Dec. 1890 ( BM000844653654 , the specimen with numerous perichaetia) .

Specimens examined: Japan ( Honshu , Oct. 1908, U. Mizushima, MHA9065824 ) , Russia (Primorsky Territory, Czandolaz / Lozovyj : Gambaryan s.n. 10.VIII.1980 VLA, MHA9017182 ; Ignatov 07-43, MW, MHA9017181 ; Ignatov & Ignatova 13-1929, MHA9017180 ; MW) , China: Shaanxi: coll. Giraldi, det. C. Müller 945 ( LE, H-BR2874008) .

Figures

Fig. 3. Lectotype of Neckera polyclada.