Macromitrium rufipilum Cardot
publication ID |
https://doi.org/ 10.5252/cryptogamie-bryologie2019v40a16 |
DOI |
https://doi.org/10.5281/zenodo.12215667 |
persistent identifier |
https://treatment.plazi.org/id/03938789-FFEA-FF9A-158D-8FCCFC35F809 |
treatment provided by |
Felipe |
scientific name |
Macromitrium rufipilum Cardot |
status |
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Macromitrium rufipilum Cardot View in CoL ,
( Fig. 2H View FIG , 20 View FIG )
Bulletin de l’Herbier Boissier, sér. 2, 8: 169 f. 4 (1908).
TYPE. — Balade, Vieillard s.n. (“typus in herb. Boissier et herb. Cardot”). Vieillard 1735 p.p. (lecto-, designated here PC [ PC 0096531]!; isolecto-, PC [ PC 0096534]!).
DISTRIBUTION IN NEW CALEDONIA. — Hitherto only collected in two localities of North Province.
TOTAL RANGE. — Endemic to New Caledonia.
SELECTED SPECIMEN. — New Caledonia. Province Nord, Canala, Mt Bogota, altitude 500 m, X.1911, Sarasin 391, PC[PC0737584 (PC)].
DESCRIPTION
Pseudautoicous
Dwarf male plants on leaf axis of female branches.
Plant
Medium sized, red brown in herbarium, stems creeping.
Branches
Thick, medium sized, 5-13 mm long, when dry loosely spiralled, spiky, leaves erect to oblique, flexuous, carinate, the incurved apex unevenly directed, when moist erect to patent, straight.
Branch leaves
Large, 3-4.5 mm long, 0.5-0.8 mm wide, ligulate, widening slightly downwards, the apices usually obtuse to truncate, some of them shortly acute on the same branch, long aristate, the aristae thin, flexuous, red with hyaline tip, 0.4-1.5 mm long, basal parts of leaves 1/4-1/5 leaf length, costae thin, red, long excurrent, margins papillose crenulate.
Upper cells
Single-layered, of varying size ranging 10-20 µm long, 10-12 µm wide, thick walled, rounded, ovate to oblong, strongly bulging, the external walls strongly protruding, rounded to high conical with small papillae simple to furcate, the cells roughly aligned, marginal cells smaller in one row, transitional part usually short, transitional cells rectangular, thick walled, walls irregular, porous nodulous, with rounded to high single papillae, lower cells rectangular, elongate to linear, 35-85 µm long, 7-10(-15) µm wide, very thick walled, lumina straight, irregularly narrow 1/3-1/4 cell width, papillae null in basal parts to numerous near transitional parts.
Perichaetia
Indistinct, perichaetial leaf size and cell ornamentation like the vegetative ones,shape lanceolate,acuminate or acute,long aristate.
Calyptrae
Naked.
Setae
Long, 20-25 mm long, thin, flexuous, vaginulae hairless but with a few short paraphyses.
Capsules
2-2.5 mm long, narrowly oblong, sub-cylindric, smooth, rims plicate, brown, erect.
Peristome
Absent or reduced to a white ridge.
REMARKS
Macromitrium rufipilum is the most distinctive taxon in the Pulchrum group, essentially by the long reddish aristae and the conspicuous spiky and spiralled shape of the branches in dry condition. Other characters such as very long leaves, smooth basal cells, longer capsules allow to separate it from most of the specimens in the Pulchrum group, but they can also be observed in some M. pulchrum var. pulchrum specimens with short aristate and obtuse leaves.
Compared to other species with long aristae, M. larrainii , M. humboldtense and M. panduraefolium , M. rufipilum differs from by many significant features (see under these species). The lectotype selected here is included in a pocket coming from the Cardot’s herbarium kept in PC. Ecological conditions are unknown.
PC |
Museum National d'Histoire Naturelle, Paris (MNHN) - Non-vascular Plants and Fungi |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.