查看更多>>摘要：Forest soils supporting Sal-Shorea robusta (Roxb. ex Gaertn. f.) plantations in the foot hills of Darjeeling and Kurseong Divisions in West Bengal were studied for their physicochemical characteristics and carbon sequestration potential. Soils are acidic, high in organic carbon and clay content but low in soil reaction (pH) and bulk density (BD). Thick deposit of leaf litter and its decomposition products increase the soil organic carbon (SOC). Significant amount of clay content also increases the moisture content which helps in decomposing the organic matter, reducing the bulk density of soil and reduces erosion. Soil organic matter tends to concentrate with roughly more than half of the soil organic carbon in the upper soil horizons (0-30cm) at all the study sites. Among the study sites, Samardanga block registers lowest SOC stock while Bamanpukuri block shows highest SOC stock.
查看更多>>摘要：In-vivo and in-vitro germination trials were done on the teak (Tectona grandis) seeds collected from a farmland and forest plantations in Tamil Nadu, India. Under in vivo pot culture condition very low germination percent of drupes was observed in seed collected from plantation (Top slip) and farmland (Kumulur). When true seeds isolated from the drupes were grown under in vitro condition in half strength MS medium, the germination percent was significantly increased up to 63.3 per cent. True seed germination among two teak sources showed the presence of mechanical dormancy which was a major limiting factor for poor drupe germination for deployment of superior genetic materials.
查看更多>>摘要：Dentella cylindrica M.C. Naik and L.J. Singh from Andaman and Nicobar Islands, India is described and illustrated as a new species. An illustration, images, and a key to the species of Dentella in India is provided.
查看更多>>摘要：The Genus Cyathodine has been merged with Blumea following molecular phylogenetic evidence (Plastid trnL-F and nuclear ribosomal DNA ITS sequences data). While the type species; C. purpurea has been transferred to Blumea, other species have not been transferred. In light of this, new combinations are made here for C. lutea & C. manilaliana. C. purpurea var. alba and C. purpurea var. bicolor are synonymized under Blumea purpurea. B. manilaliana is reported here the first time from Maharashtra state.
查看更多>>摘要：Hewittia malabarica (L.) Suresh of the family Convolvulaceae is reported as an addition to the flora of Uttar Pradesh from the Gorakhpur district. A detailed description along with photographs is provided for easy identification in the field.The morning glory family Convolvulaceae Juss. is one of the largest families of flowering plants, consisting of 59 accepted genera and about 1850 species (Mabberley, 2017), widely distributed in tropical, subtropical, and temperate regions of the world.The plants of this family are generally herbs and shrubs, with twining or climbing habit, often with milky juice (http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_ id=10216). In India, the family Convolvulaceae harbours about 110 species within 23genera (https://sites.google.com/ site/efloraofindia/species/a—1/cl/convolvulaceae), having a cosmopolitan distribution. Uttar Pradesh has about 55 species under 13 genera in the family Convolvulaceae (Khanna, 2017). During the survey of vegetation ofGorakhpur district of Uttar Pradesh, the authors observed an interesting plant growing luxuriantly along the roadsides of Gorakhpur-Maharajganj Highway near Gulhariya Thana, Gorakhpur (26.82°N & 83.40°E) at about 84 m elevation. After detailed studiesand consulting relevant literature, authentic specimens, it was identified as Hewittia malabarica (L.) Suresh. This species has not been reported by previous workers in Uttar Pradesh (Clarke, 1883; Duthie, 1915; Raizada, 1976; Srivastava, 1976; Khanna etal.,1999; Khanna, 2017).Therefore, the occurrence of this species in Gorakhpur district constitutes a new record for the flora of Uttar Pradesh.
查看更多>>摘要：Veronica ciliata subsp. cephaloides (Penneil) D.Y. Hong is reported here as a new record to the flora of Himachal Pradesh from Sechu Tuan Nalla Wildlife Sanctuary; Pangi; district Chamba. The species was previously reported from Sikkim and Uttarakhand. A brief description of the taxon; key to closely allied taxa and photographs of habitat and plant are provided to facilitate easy identification.
查看更多>>摘要：A total of 258 angiosperm taxa representing 75 families were evaluated as potential wild ornamentals in Andhra Pradesh; out of the total 845 wild ornamental taxa recorded from a five-year field study. The largest family is Fabaceae with 23 species andthe largest genus is Ficus with nine species. Present paper deals with the critical analysis and systematic enumeration of all the 258 taxa in a tabulated form with their botanical names, habitat, habit form, ornamental category, longevity, district-wise distribution and voucher specimens.
查看更多>>摘要：Physcomitrium eurystomum Sendtn. is recorded for the first time form Jharkhand, Central India, earlier known from West Himalayan, Western Ghats, Punjab and West Rajasthan and Gangetic Plains bryological territeries of India.
查看更多>>摘要：Female plants of Trichocolea udarii D.K.Singh are investigated for the first time based on recent collections by the authors from its type locality in Jaintia Hills. The details of the same have been provided here alongwith identification key to the Indian species of Trichocolea.
查看更多>>摘要：Lejeunea subolivacea Mizut. is an endemic and poorly known species. This species is described and illustrated for the first time from Central Indian Bryo-geographical region from Rajmahal hills; Sahibganj district (Jharkhand).
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