Radula buccinifera
(Hook.f. & Taylor) GottscheYellow-green to dark green mats, dioicous. Specialised asexual propagules absent. Leaves elliptic or ovate with a triangular base, at least some leaves falcate, 425–1375 μm long, 400–1125 μm wide, rounded at apex, continuous to imbricate, inserted up to dorsal mid-line leaving no continuous row of cells uninterrupted by leaf insertions or up to 3 rows of cells uninterrupted by leaf insertions, not inserted at ventral mid-stem and leaving 2–5 rows of cells uninterrupted by leaf insertions, extending over dorsal side of stem often reaching or sometimes exceeding the opposite side of stem, attached to lobule by a straight, bulging or scalloped keel; lobe margin entire or with occasional rounded protrusions, in most leaves descending below the level of the keel and forming a distinct notch at intersection; lobule quadrate to rhombic, 1/8–1/6 of lobe area on leading shoot, 200–625 μm long, 150–450 μm wide, with rounded to acute apex, free and extending to half way or more over the ventral stem before attachment; leaf lobe cells rounded-polygonal, not forming a vitta, 10–33 μm long, 9–23 μm wide, thin-walled, with small triangular trigones, smooth, with 2–3 oil bodies; oil bodies light brown, granular, homogenous. Perianth 2450–3650 μm long, 575–975 μm wide.
GipP, OtP, WaP, CVU, GGr, DunT, EGL, WPro, HSF, HNF, OtR, Strz, VAlp. Widespread and common along and south of the Great Dividing Range in rainforests and riparian vegetation where often one of the most common species on trees and tree ferns, and on rocks beside creeks and around waterfalls and in protected sites among rock outcrops. Occasionally also on rocks submerged in fast-flowing streams. Also, Western Australia, Queensland, New South Wales, Australian Capital Territory and Tasmania.
Some populations included in R. buccinifera from Tasmania and New Zealand formed a group most closely related to the remaining R. buccinifera samples in a phylogeny based on three chloroplast regions (Renner et al. 2013). This group was segregated from R. buccinifera as R. demissa M.A.M.Renner. Two Victorian collections were listed as belonging to R. demissa in Renner et al. (2013), but were not sequenced in the study and are not convincingly different from Victorian collections that were assigned to R. buccinifera after side-by-side comparison.
Renner, M.A.M., Devos, N., Patiño, Brown, E.A., Orme, A., Elgey, M., Wilson, T.C., Gray, L.J. & VON Konrat, M.J. (2013). Integrative taxonomy resolves the cryptic and pseudo-cryptic Radula buccinifera complex (Porellales, Jungermanniopsida), including two reinstated and five new species. Phytokeys 27: 1–113.
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