Frullania mirabilis J.B.Jack & Steph.

Oliveira-Da-Silva, Fúvio Rubens, Gradstein, S. Robbert, Viana, Pedro Lage, G., Carlos Ernesto, Schaefer, R. & Ilkiu-Borges, Anna Luiza, 2022, Bryophytes from Uei tepui (Serra do Sol), with liverworts new to Brazil and the description of Leptoscyphus incisus sp. nov., Cryptogamie, Bryologie 20 (4), pp. 51-64 : 55

*** Frullania mirabilis J.B.Jack & Steph.

( Fig. 3 A-G)

SPECIMENS EXAMINED. — Uei tepui, woodland in crevice, on tree trunk, 5°00’25”N, 60°36’52”W, alt. 2046 m, Viana et al. 6273, 6274, 6281.

REMARKS

Frullania mirabilis was recorded from Costa Rica, Guyana, Venezuela, Colombia, Ecuador and Peru, growing on bark of tree, rock and soil in montane rainforest at 1200-1600 m ( Clark & Svihla 1948; Stotler 1969; Gradstein & Florschütz-de Waard 1989; Rico & Pócs 2004). This species is characterized by one large appendix at the ventral leaf base near the lobule base, which emerges from the keel between lobe and lobule and is variable in shape being entire or with 1-several lobes ( Clark & Svihla 1948). Another diagnostic characteristic is the appendiculate dorsal leaf base.

Figures

FIG. 3. — Liverworts new to Brazil. A-G, Frullania mirabilis J.B.Jack & Steph: A, leaf on stem, dorsal view; B, leaf on stem, ventral view; C, flattened leaf, dorsal view; D, lobules with appendix; E, appendix of lobule; F, lobule without appendix; G, underleaf. H-L, Colura rhynchophora Jovet-Ast: H, sector of a stem with perianth; I, apex of a perianth keel; J, leaf; K, valve; L, base of valve. A-G from Viana et al. 6273; H-L from Viana et al. 6260. Scale bars: A-C, G, H, J, 250 µm; D, E, 100 µm; F, I, K, L, 50 µm.