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This catalogue includes a total of 150 valid names from the State of Himachal Pradesh, India, of them 140 taxa (128 species, 6 subspecies, 5 varieties and 1 forma) belonging to liverworts and 10 species to hornworts, based on literature and authors’ own survey and documentation of the two groups from the State since 2001. Fifty four taxa (including three new species and one new variety) are recently added by the authors alone to the area. Literature reference for each species and synonyms from the area has been given with their correct name in the catalogue.
With 280 accepted species, the genus Riccardia S.F.Gray (Aneuraceae) is one of the most speciose genera of simple thalloid liverworts. The current classification of this genus is based on morphological and limited-sampling molecular studies. Very few molecular data are available and a comprehensive view of evolutionary relationships within the genus is still lacking. A phylogeny focusing on relationships within the large genus Riccardia has not been conducted. Here we propose the first worldwide molecular phylogeny of the genus Riccardia, based on Bayesian inference and parsimony ratchet analyses of sequences from three plastid regions (psbA-trnH, rps4, trnL-F). The results support the monophyly of Riccardia and a new monospecific genus, Afroriccardia Reeb & Gradst. gen. nov., is described based on molecular and morphological evidence. The results indicate that several currently recognized infrageneric divisions and a few species are not monophyletic, suggesting that further analyses are needed to arrive at a proper understanding of the phylogeny of the genus. Although evidence for an Andean clade was found, most of the species appear scattered in different clades without clear geographical segregation. Broader sampling and further analyses are necessary in order to improve our understanding of the phylogeny of this poorly known liverwort genus.
The family Geocalycaceae are one of the largest families of leafy liverworts in India consisting of 9 genera and 27 species belongs to two subfamilies. Present study reports the distribution of members of this family in Kerala state. In Kerala the family Geocalycaceae are represented by 11 species belonging to three genera viz., Heteroscyphus (6 species), Chiloscyphus (3 species) and Lophocolea (2 species). Among these Chiloscyphus muricatus and Heteroscyphus bescherellei are new record of occurrence for the state of Kerala.
Thalloid liverworts with unistratose thallus margins are easily determined as Aneura maxima, which shall be identified by this character. However, forms of Pellia epiphylla and P. endiviifolia grown under humid conditions can have an unistratose undulate thallus margin and thus confused with the latter. Pellia species can, however, be distinguished from Aneura by the presence of slime hairs vz. slime papillae, which are described and illustrated here.
The checklist reports 712 taxa of bryophytes from Tamil Nadu, India, comprising 211 taxa in 56 genera and 32 families of liverworts, 8 taxa in 4 genera and 2 families of hornworts, and 493 taxa in 189 genera and 44 families of mosses. Literature sources for Tamil Nadu records are included for each taxon, and an extensive synonymy is provided. For currently accepted taxa, the details of types from Tamil Nadu are indicated. A map of Tamil Nadu, a synopsis of families and genera, and a bibliography are provided.
The checklist reports total 2489 taxa of bryophytes recorded from India, comprising 1786 species in 355 genera of mosses, 675 species in 121 genera of liverworts and 25 species in six genera of hornworts. Some of the genera of mosses like Fissidens, Barbula, Campylopus, and Bryum are found to have largest number of species. In liverworts Riccia, Porella, Frullania, Lejeunea, Plagiochila and Jungermannia are recorded to be species rich genera and in hornworts Anthoceros is well represented by species. Pottiaceae, Lejeuniaceae and Notothyladaceae are largely represented in India. Nearly 340 species are endemic to India.
Parson’s valley is an area explored for the first time in Indian Bryology; it is situated in Nilgiri hills (Western Ghats). The region is very conducive for the growth of liverworts and it is evident by the present study of recent collections from this area in which 27 taxa (under 12 genera and 5 families) of liverworts have been recorded, of which few are new to Nilgiri hills as well as south India.