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Genus Lophozia Dum.
Jungermannia Sect. Lophozia Dum., Syll. Jung., 1831; Lophozia Dum., Rec. d'obs., 1835.
Plants small to robust. Stem creeping or ascending, simple or slightly branched, sometimes with sub-floral innovations, rhizoids generally numerous. Leaves obliquely to transversely inserted, alternate, mostly 2-lobed, plane or dorsally concave. Stipules mostly wanting, or, when present, usually small, lanceolate-subulate, entire or bifid. Involucral leaves nearly always larger than, but similar to, the foliage, generally more lobed, margins sometimes dentate. Perianth terminal, ovate to cylindrical, plicate above the middle, or obscurely so at the mouth. Androecia terminal, median or hypogynous.
Stephani lists 51 species, mainly in the northern hemisphere.
Lophozia pumicicola Berggr.
L. pumicicola Berggr., N.Z. Hep., 21, 1898; St., Spec. Hep., ii, 142.
Plants minute, dioicous, dingy green with tinted perianths. Stems decumbent, ca. 2–3 mm., without the perianths, rhizoids very numerous, to ca. 1.2 mm., but mostly shorter. Leaves concave, obliquely homomallous, “reddish-brown”, orbicular-ovate, bifid, laciniae triangular, conniving, sub-acute, sinus also triangular and about the same size. Stipules “minute, linearia vel subulata”, but very hard to see amongst the rhizoids, cells rounded, averaging about 30μ, clear, basal larger. Trigones all confluent. Invol. leaves larger, very broad, shortly bifid, acute or cuspidate, margins variously toothed, may be whitish. Perianth terminal, oblong-ovate, upper portion 5-plicate, narrowed to the mouth, which is longly toothed; usually rose-pink, fading to whitish.
Dry ground amongst short, open manuka, E. of Waiotapu Valley, top of open road cutting near Atiamuri, K. W. Allison.
The type is from gravelly and pumice ground with Symphyomitra drummondii near L. Taupo, coll. Berggren.
Lophozia innominata sp. nov.
Planta parva, monoica, pallescens, depresso-caespitosa. Caulis ad 0.5 cm., simplex, radicellosus, sub-flore innovatus. Folia caulinis patula, subrotunda, bifida, sinu late obtuso, concava. Amphi. caulina nulla. Cellulae ca. 35–40μ, trigonis parvis vel majusculis. Folia floralia simillima caulinis, patula vel squarroso-decurva. Amphigastria floralia rectangularia, bifida. Perianthia optime pyriformia, inflata, eplicata (madida), lobis conniventibus, ore dentato-ciliato. Androecia hypogyna. Bracteae ca. 4-jugis, saccato-complicatae. Antheridia solitaria, globosa.
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Plants small, monoicous, pale brownish-green, in amongst Lepidozia sp. Stems simple with a sub-floral innovation, 0.5 cm., or may be a little longer, rhizoids usually present, of very varying lengths. Leaves spreading, usually subrotund, insertion more transverse than oblique, dorsally a little decurrent, ca. 0.6 mm., lower ones may be smaller, usually concave, bifid to less than ½, very rarely trifid, segments triangular, may be tapering on the innovation, ascending or incurved, rarely decurved, sinus obtuse to crescentic; dorsal and ventral margins arched, rarely subparallel. Cells ca. 35–40 μ, trigones small, larger when the lumen is rounded. Involucral leaves in 2 pairs, similar to the cauline, with an occasional lateral tooth. Invol. stipule sub-rectangular, bifid to ca. ⅓, appears to be free on one side only. Perianth obovoid, occasionally obovoid-elliptic, inflated, plicae discernible on the upper portion in the dry state, lobate, segments conniving to form an irregular dentate or ciliate-dentate, subhyaline mouth. Perigonial bracts usually in 4 pairs below the involucral leaves on some, but not all, of the fertile stems, imbricate, complicatesaccate. Antheridia usually solitary, globose.
This species differs from L. pumicicola Berggr. in the paroicous inflorescence and the inflated pyriform perianth with a sub-floral innovation.
Collected at Arthur's Pass, South Island, by H. M. Hodgson and F. MacDonald, June, 1942.
Type specimens are in the herbaria of E. A. Hodgson and K. W. Allison respectively.