Austral Hepaticae 29. More New Taxa and Combinations in Telaranea (Lepidoziaceae) and a New Name for Frullania caledonica (Schuster) Schuster (Frullaniaceae) from New Caledonia

Abstract

Telaranea consobrina, T fragilis, and T palmata, new species from Australasia, are described and illustrated. Telaranea clatritexta (Stephani) Engel & Merrill and T quadricilia (Stephani) Engel & Merrill of Australasia and T. fernandeziensis (Stephani) Engel & Merrill from Juan Fernmindez are new combinations. Frullania neocaledonica of New Caledonia is proposed as a new name for Frullania caledonica (Schuster) Schuster, an illegitimate name. The following new taxa and new combinations, together with those previously published (Engel & Merrill, 1995), are the result of a phylogenetic study of the genus Telaranea, which is currently in preparation by the authors. The names are here published separately to make them immediately available for use. Studies on Australasian Hepaticae have also revealed a nomenclatural change required in the genus Frullania. Telaranea clatritexta (Stephani) Engel & Merrill, comb. nov. Basionym: Lepidozia clatritexta Stephani, Spec. Hep. 3: 583. 1909. TYPE: Australia. Western Australia: Swan River, Drummond, ex Herb. Kew (G). Lepidozia complanata Herzog, Memoranda Soc. Fauna F1. Fenn. 27(1950-1951): 92. fig. 39. 1952. Syn. nov. Telaranea complanata (Herzog) Engel & Merrill, Phytologia 79: 251. 1995 [June 1996]. TYPE: Australia. Western Australia: without specific loc., Goebel (holotype, not seen). In a previous paper (Engel & Merrill, 1995), we published the combination Telaranea complanata (Herzog) Engel & Merrill. Further studies have revealed that Lepidozia clatritexta Stephani is the same taxon, and a transfer to Telaranea is therefore required. Telaranea consobrina Engel & Merrill, sp. nov. TYPE: Tasmania. Eastern slope of Black Bluff just below summit, S of Bumrnie, 1250 m, 21 Mar. 1977, Engel 15799 (holotype, F; isotype, HO). Figure 1. Species nova T. meridianae affinis disco folii basin versus 8 cellulis lato, lobis angustioribus, amphigastriis latioribus brevioribusque, hyalodermate conspicuo differt. Plants soft and flexuous, ascending to suberect, pale green, medium in size, to 6 mm wide, including branches. Branching rather regularly 1-pinnate, the branches of the Frullania-type, at times becoming flagelliform; first branch underleaf undivided (very rarely bilobed), broadly acuminate to lanceolate. Ventral-intercalary branches not seen. Stems with cortical cells distinctly differentiated, thinwalled, in 13-14 rows; cortical cells in section slightly to distinctly larger than the numerous (4953) medullary cells. Leaves on main shoot obliquely spreading, contiguous, the disc plane or weakly convex, the lobes ventrally decurved, the insertion distinctly incubous, the disc broader than high; leaves 475-600 /m wide x 440-525 /m long, the leaves 4(5)-lobed to 0.4-0.5, the lobes straight to moderately divergent. Lobes narrowly acute to acuminate, 4-5 cells wide at base, often 4 cells wide in basal sector, then biseriate for 2-3 tiers, terminating in a short uniseriate row of 2-3 cells (or sporadically a single cell or 2 laterally juxtaposed cells); lobe cells ? isodiametric to short rectangular, thin-walled. Leaf disc somewhat asymmetrically cuneate, the disc (5)6-7(8) cells high (from median sinus base to leaf base), 13-16 cells wide in distal portion narrowing to 8(9) cells wide in basal portion. Cells of disc thin-walled, median cells short rectangular, 24-38(42) /m wide x 42-49 /m long, the cells in + irregular rows; cuticle smooth. Underleaves somewhat smaller than leaves, 1.7-2.3x stem width, 4(5)-lobed to 0.4-0.45, the lobes narrowly acut , 3-4 cells wide at base and biseriate for 1-2 tiers, ending in a uniseriate row of 2-3 short cells; disc symmetrically broadly cuneate (wider than high), 4-5 cells high (median sinus), 14-18 cells wide. Asexual reproduction lacking. Androecia and gynoecia not seen. Taxonomy. This species strongly resembles T meridiana of New Zealand, with broad, almost lonNOVON 9: 339-344. 1999. This content downloaded from 207.46.13.110 on Fri, 09 Dec 2016 05:48:26 UTC All use subject to http://about.jstor.org/terms