Porella acutifolia (Lehmann & Lindenberg) Trevisan (1877: 408) var. acutifolia

Sukkharak, Phiangphak & Chantanaorrapint, Sahut, 2018, An account of the liverwort genus Porella in Thailand with a new record, P. obtusata var. macroloba and the occurrence of asymmetrical underleaves associated with left-right symmetry in the genus, Phytotaxa 385 (2), pp. 77-84 : 79

1. Porella acutifolia (Lehmann & Lindenberg) Trevisan (1877: 408) var. acutifolia . Madotheca acutifolia Lehmann & Lindenberg in Lehmann (1838: 8).

Descriptions and illustrations:— Hattori (1967: p. 137 – 138, Fig. 5 as Porella johannis-winkleri ( Herzog 1931: 195) Hattori (1967: 137) ; p. 149, Fig. 10 (o – v) as P. stracheyana (Gottsche ex Stephani 1910: 308) Hattori (1967: 149)) ; Pócs (1968: p. 73 – 74, Fig. IV, 110 – 139; p. 81–82, Fig. IX (276–295) as P. plumosa var. stracheyana (Gottsche ex Stephani 1910: 308) Pócs (1968: 82)) ; Hattori (1969: p. 319–320, Fig. 1 (a–l); p. 320–323, Figs. 2–4 as P. acutifolia var. elbertii ( Stephani 1924: 520) Hattori (1969: 320) ; p. 324–326, Figs. 5–6 as P. acutifolia var. lancifolia ( Stephani 1910: 305) Hattori (1969: 325) ; p. 323–325, Fig. 7 (n–r) as P. acutifolia var. johannis-winkleri ); Hattori (1970: p. 41–42, Fig. l; p. 41–44, Fig. 2 as P. acutifolia var. subligulifera Hattori (1970: 41)) ; Hattori (1976: p. 129–130, Fig. 3; p. 130–132, Figs. 4 (a–k); 5 (a–g, k–l) as P. acutifolia var. lancifolia ).

Specimens reported from Thailand:— Chiang Mai. SUTHEP MT.: Kitagawa T–12325.— Lampang. KUN TAN MT.: Tagawa & Kitagawa 485.— Loei. PHU LUANG MT.: Tagawa & Kitagawa T–1893 ( Hattori 1976 as P. acutifolia var. lancifolia ).

Distribution:— India, Japan (Ryukyu Islands), Southeast Asia, Sri Lanka, USA (Hawaii) ( Hattori 1978).

Figures

FIGURE 1. Porella obtusata (Taylor) Trevis var.macroloba (Steph.) S.Hatt. & M.X.Zhang. A. Portion of shoot, dorsal view. B. Portion of shoot, ventral view. C. Leaf lobes, ventral view. D. Leaf lobes and leaf lobules, dorsal view. E. Leaf lobes and leaf lobules, ventral view. F. Underleaves on right-hand branches, showing asymmetrical auriculate base. G. Underleaves on left-hand branches, showing asymmetrical auriculate base. H. Leaf apex. I. Margin cells of leaf lobe. J. Median cells of leaf lobe. K. Basal cells of leaf lobe. [All from Sukkharak 91/1186 (Hb. Burapha Univ.)].