Calypogeia neesiana subsp. subalpina (Inoue) Inoue, Mem. Natl. Sci. Mus. (Tokyo) 4: 58. 1971.

Bakalin, Vadim A., Klimova, Ksenia G. & Nguyen, Van Sinh, 2020, A review of Calypogeia (Marchantiophyta) in the eastern Sino-Himalaya and Meta-Himalaya based mostly on types, PhytoKeys 153, pp. 111-154 : 111

Calypogeia neesiana subsp. subalpina (Inoue) Inoue, Mem. Natl. Sci. Mus. (Tokyo) 4: 58. 1971. Figure 11F-J

Basionym.

Calypogeia subalpina Inoue, J. Jap. Bot. 37 (4): 103. 1962.

Type.

Japan, Toyama Prefecture, Tateyama Mt., between Shishindake and Ryodake, 2600-2800 m a.s.l., on humus beneath Pinus pumila shrub, 15 August 1959, H. Inoue, no. 8733 (holotype: NICH [NICH-49950!]).

Remarks.

Unlike Calypogeia neesiana s. str., its subsp. subalpina may be expected in the eastern Sino-Himalaya. It differs from C. neesiana s. str. in larger marginal leaf cells (not only longer, as is typical for C. neesiana , but also wider, which is somewhat like marginal cells in C. marginella ) and orbicular underleaves (versus underleaves transversely ellipsoidal).

The description based on the holotype is as follows: plants prostrate to loosely ascending, pale brownish in herbarium, forming loose mats, 1.1-2.0 mm wide and 5-10 mm long; rhizoids sparse to virtually absent, in several bundles obliquely to erect spreading or spreading up by the underleaf surface, from each underleaf base (if rhizoids developed), brownish to nearly colorless; stem brownish, 140-200 µm in diameter; leaves obliquely to subhorizontally inserted, dorsally insertion line transverse to arcuate, ventrally shortly decurrent, contiguous to subimbricate, ovate to obliquely ovate, 925-1075 × 625-875 µm; underleaves appressed to the stem, hyaline, 450-550 × 550-650 µm, nearly orbicular; midleaf cells subisodiametric to slightly oblong, ~25-40 µm in diameter, cells 5-6-gonal, thin-walled, with small and concave but distinct trigones, cuticle loosely verruculose; along margin 37-75 µm, with walls slightly thickened, trigones moderate in size, sometimes confluent on tangential side, concave; cells in underleaf middle mostly thin-walled with small to vestigial, concave trigones, along margin thin-walled, with small concave trigones.

Figures

Figure 11. Calypogeia latissima Steph.: A leaf B underleaf D leaf middle cells Calypogeia nasuensis Inoue: E leaf G underleaf H leaf margin cells Calypogeia neesiana subsp. subalpina (Inoue) Inoue F leaf margin cells I leaf J underleaf Calypogeia yoshinagana Steph. K underleaf L leaf middle cells M leaf. Scale bars: 1 mm (A, G, H); 500 µm (B, F, J, L, K); 100 µm (C, D, E); 50 µm (I). A, B, D from Lectotype G 00061102; E, G, H from Holotype TNS- 174632; F, I, J holotype NICH- 49950; K, L, M from Lectotype G 00067733.