Contribution to the bryophyte flora of New Caledonia IV. Species new to the country, new localities together with taxonomic notes
Author
Thouvenot, Louis
Saint Léon, 66000 Perpignan (France) thouvenot. louis @ orange. fr
louis@orange.fr
Author
Müller, Frank
Technische Universität Dresden, Institut für Botanik, 01062 Dresden (Germany)
text
Cryptogamie, Bryologie
2021
2021-09-17
20
13
181
196
http://dx.doi.org/10.5252/cryptogamie-bryologie2021v42a13
journal article
10.5252/cryptogamie-bryologie2021v42a13
1776-0992
7822275
Ectropothecium sodale
(Sull.) Mitt.
Journal of the Linnean Society
,
Botany
10: 180 (1868)
.
Ectropothecium papillosulum
Thér.
Revue Bryologique
48: 54 (1921)
. —
Type
:
New Caledonia
, “in ditione Poindimié, prope Vagap,
II-1910
,
Le Rat “s.n.
(Reliq. E.G.Paris). (lecto-, here designated: “1763.
Ectropothecium papillosulum
Thér.
n.sp.
mél. à
Rhynchostegium javanicum
v
majus
”, PC[PC0775281!])
syn. nov.
COMMENTS
Higuchi & Iwatsuki (1994)
wrote that they were unable to check the
type
specimen of
Ectropothecium sodale
. Fortunately, the
type
specimen was recovered at PC by Lionel Kervran from a pack of returned specimens.
The morphology of this specimen matches the corresponding characters of
E. sodale
. Thériot distinguished his new species only by the less falciform leaves and their wider apices, but the degree of expression of these characters is very variable in a single specimen, both in the
type
and in all specimens seen in
New Caledonia
. The
type
specimen is sterile and its sexuality discussed by
Thériot (1921)
. Finally,
E. papillosulum
is proposed as a synonym of
E. sodale
, a species widely occurring in tropical Asia,
Australia
, Melanesia and the Pacific Islands (
Biju
et al.
2017
and
GBIF 2020
).
DESCRIPTION FROM THE
LECTOTYPE
.
Habit
Shoots remotely pinnate, with leaves secund, slightly concave near base, contiguous to slightly imbricate.
Stem
Main stems 170 µm wide, with a central strand and thick cortical tissue, pseudoparaphyllia linear foliose, at most two cells wide.
FIG. 4. —
Zoopsis setigera
Goebel.
:
A
, part of plant, dorsal aspect;
B
, part of plant, ventral aspect;
C
, detail of ventral merophyte with cortical cells narrowly rectangular and only about 22–27 µm wide. All from
K. Reichel NC887
. Scale bars: A-C, 100 µm.
Leaves
Triangular-lanceolate,
0.8 mm
long,
0.2 mm
wide, costa short and double, margins denticulate, at least near apices or bases.
Cells
Leaf cells linear, thin-walled, dorsally prorate, 32-57 µm long, 5 µm wide, angular cells few, short rectangular to quadrate, with a single inflate cell short decurrent.