Calypogeia ceylanica S. Hatt. et Mizut., Candollea 23: 288. 1968.

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

publication ID

http://dx.doi.org/10.3897/phytokeys.153.52920

persistent identifier

http://treatment.plazi.org/id/6635E1C3-B7A0-5804-A35A-D727629743A6

treatment provided by

PhytoKeys by Pensoft

scientific name

Calypogeia ceylanica S. Hatt. et Mizut., Candollea 23: 288. 1968.
status

 

Calypogeia ceylanica S. Hatt. et Mizut., Candollea 23: 288. 1968.   Figures 6F-M View Figure 6 , 9E-J View Figure 9

Type.

Sri Lanka. Central Province: Nuwara-Eliya, 1950 m a.s.l., 24-27 February 1954, F. Schmid 10334 (isotype: G [G00064248!]).

Remarks.

Calypogeia ceylanica   is known as a taxon restricted to Ceylon (Sri Lanka) and was never recorded for the Sino-Himalaya, although it may be expected in Sikkim, Assam, or even farther. Moreover, some reports of C. muelleriana   may actually be based on C. ceylanica   . Calypogeia ceylanica   differs from C. muelleriana   in more deeply divided and narrower underleaves and apiculate to shortly bidentate leaf apices (a feature that very rarely occurs in C. muelleriana   ).

The description based on isotype plants is as follows: plants yellowish brownish in herbarium, glistening, translucent, 2.2-3.5 mm wide 3-5 cm long; stem 370-450 µm wide, branching not seen; rhizoids in loose colorless to brownish fascicles, sparse to numerous; leaves obliquely inserted, slightly concave or convex, somewhat turned to ventral side, not or barely decurrent ventrally, obliquely ovate, well developed 560-670 × 450-550 µm, apex acute to (rarely) unclearly and very shortly bidentate; underleaves obliquely spreading, 1.1-1.3 as wide as stem, decurrent for ¼ -1/3 of stem width, divided by V- to U-shaped sinus into two lobes, lateral teeth absent or present and unclear, undivided portion 2-3 cells high; midleaf cells thin-walled, trigones very small to vestigial, 35-80 × 35-58 µm, cuticle smooth.