Molecular circumscription and intraspecific variation in Porella canariensis (F.Weber) Underw. (Porellaceae,Marchantiophyta)

Abstract

Fissidens subpulchellus Norkett in Gangulee is critically revised, and reduced to the synonymy of F. pulchellus Mitt. A new species, Fissidens longtonianus Z.Iwats. &; Tad.Suzuki, is described from India. This moss was collected on a branch in Jdukki District, South India, and is separated from F. pulchellus Mitt. by its smooth laminal cells, shorter setae and larger, smooth spores.     

Frullania larjiana (Jungermanniopsida: Frullaniaceae), a new species from India

Abstract

Frullania larjiana Sushil K. Singh & Singh is described as a new species from the Western Himalaya, India. The species is characterized by ovate-suborbicular leaf lobes that are truncate at their antical bases; uniformly lanceolate–explanate lobules, 0.15?0.17 × 0.0?0.09 mm with a vestigial stylus 1–2 cells long; small underleaves, 0.16?0.3 × 0.1?0.15 mm; obovate to oblong-obovate female bract lobes; triangular lanceolate bract lobules without a stylar tooth and an obovoid, smoothly 5-keeled, shortly beaked perianth.     

Two new species of Lejeunea Lib. (Hepaticae: Lejeuneaceae) from Sikkim,India

Abstract

Two new species of Lejeunea Lib., L. kashyapii sp. nov. and L. mehrana sp. nov. are described from Sikkim, India. The former is characterized by sub-orbicular leaves; first tooth of leaf lobule, 1–3 cells long 1–2 cells wide at base; reniform underleaves slightly wider than long; monoicous sexuality; 2–3-paired male bracts; obcordate perianth with 4–5 smooth keels (2 lateral, auriculate; 2 ventral; 0–1 dorsal, indistinct). Whereas, the latter is characterized by oblong – ovate leaves; lobule 1/6–1/5 as long as lobe; distant – contiguous underleaves with 1–3 teeth on each lobe; dioicous (?) sexuality; 2–4-paired male bracts and 1–2 male bracteoles present near the base of androecia. A key to the Indian species of the genus are provided.