Pteridophytes constitute an important component of forest ecosystems in addition to non-vascular cryptogams and spermatophytes (Magnoliophyta). Study has been carried out to assess the diversity and distribution patterns of pteridophytes in Biological Corridor III of South Central Bhutan with an aim to evaluate species composition along elevation-gradients and to understand how environmental factors influence species richness and distribution. Line-transect methods were adopted on site in four different locations. Species richness and diversity study was conducted in 47 sample plots taken at sizes of (10 x 10m) at 500m interval from 800 to 2200m altitude in three forest types. A total of 64 fern species were recorded represented by 3146 individual plants. Maximum species richness was observed at elevations between 1000 and 2000m. The species diversity index was (H = 1.368), evenness (E_H = 0.88) and species richness (S_R = 5.1). Pteris normalis was found to have the highest relative abundance of (R_A = 9.91); Selaginella monospora had the highest relative density with (R_d = 11.35) and the maximum Importance Value Index of (IVI = 26.48) distributed along the widest range of elevation. Environmental and ecological variables such as temperature, slope and soil pH tend to have negative correlation with species counts. Elevation, soil-moisture content, precipitation and canopy coverage tend to have a positive correlation. Species counts through different vegetation zones tend to increase from tropical to subtropical and gradually decrease towards warm temperate forest.

Eleutheranthera ruderalis (Sw.) Sch.-Bip. is newly recorded for the flora of Eastern Ghats. A detailed description, images and other pertinent notes on the species are provided.

The extended distribution of Acmella radicans (Jacq.) R.K. Jansen, to the southern Western Ghats of Tamil Nadu is reported here. Detailed description, notes and photographs are provided.

Heterotis is reported from the Nilgiris district in Tamil Nadu. It forms the first record of the genus Heterotis in Tamil Nadu. A detailed description, notes and colour photographs are provided for easy identification in the field.

The Genus Myriactis L. (Asteraceae) is recorded for the first time for the state of Chhattisgarh in India, from Kabir Chabutra of Bilaspur district. Detailed description, distribution, phenology, ecology and uses of the species M. nepalensis Less., along with relevant notes are also provided.

Iphigenia mysorensis Arekal & S. N. Ramaswamy belonging to family Colchicaceae, a rare and endemic species, has been reported for the first time from Tamil Nadu. This species was recorded previously from Hassan, Mysore and Tumkur districts of Karnataka. A detailed description, photo-plate and other relevant informations are provided.

The occurrence of the genus Mitrasacme Labill. in Telangana is confirmed in this communication. Besides M. pygmaea R.Br. is recorded as new to the flora of Telangana. Brief generic and species descriptions, key to the species, phenology, distribution and colour photo plate is provided for identification.

Robinson & Skvarla (2009) created the genus Uniyala based on SEM studies of the pollen and herbarium material by grouping seven species previously placed in Vernonia Schreb. The basionyms as well as the seven new combinations, however, were not typified and hence the lectotypes are designated here for all the seven Indo-Sri Lankan endemic species as per the Code. Uniyala wightiana (Arn.) H. Rob. & Skvarla is added here to the Flora of Tamil Nadu. Critical taxonomic notes for each species have also been provided.

The genus Malachra (M. capitata) of the family Malvaceae is reported as an addition to the flora of Uttar Pradesh. A detailed description along with a photo illustration is provided in the paper for easy identification.

The present paper deals with extended distribution of Myosoton aquaticum (L.) Moench (Caryophyllaceae), with botanical description, phenology and ecological notes.

Biology of the Asian citrus psyllid Diaphorina citri Kuwayama (Hemiptera: Psyllidae) was evaluated on curry leaf Murraya koenigii. The study revealed that D. citri is an important pest of ‘curry leaf’ in homestead gardens, farmer’s fields and forest areas in Saharanpur, Uttar Pradesh, India. The hatching percentage of the eggs was 80.25±3.47%, while the viability of the nymphal instars was 65.2±2.49%. The total nymphal period was 13.40±1.23 days. Adults emerged after 4-5 (4.4±0.50) days from fifth instar nymphs that took 35-40 minutes to emerge. The males lived for 24.94±0.65 days, with a total developmental period of 37.058±2.20 days, whereas the females survived for 39.81±0.53 days, having a total developmental period of 42.94±3.21 days. Pre-oviposition, oviposition and post-oviposition periods lasted for 2.75 ± 0.71, 22.6 ±5.18 and 3.35±1.03 days, respectively. Female fecundity was recorded to be 550-800 (692.90 ± 99.34) eggs per female.