Keys as per BSI Flora of India:
Nothopegia beddomei Gamble (It appears keys in BSI Flora of india are not correct as being contradictory w.r.t. no. of secondary nerves as per book link in Flora of Peninsular India (about 20 for Nothopegia beddomei). Also as branches and petals appear to be glabrous here.)
Nothopegia heyneana (Hook. fil.) Gamble (India (Andhra Pradesh, Tamil Nadu, Kerala) as per Catalogue of Life)
Nothopegia travancorica Bedd. ex Hook. fil. (India (Karnataka, Tamil Nadu, Kerala) as per CoL)
(Branchlets and petioles are rusty villous. No. of secondary nerves similar to those for Nothopegia beddomei))
Nothopegia species- Chinnar Wildlife sanctuary, Idukki, Kerala
Nothopegia racemosa(Dalzell) Ramamoorthy (synonym of Nothopegia castaneifolia(Roth) Ding Hou
Nothopegia aureofulva Beddome ex Hook.f. (India : Hills of Western Ghats. Tamil Nadu and Kerala. Endemic)
var. beddomei (India: Western Ghats, up to 1650 m. Karnataka, Tamil Nadu and Kerala)
var. wynaedica Ellis & Chandrasekharan (India : Kerala. Endemic)
Nothopegia castaneaefolia (Roth) Ding Hou (The species, recorded from Goa, has never been subsequently reported in any flora)
Nothopegia colebrookiana (Wight) Blume (India : Western Ghats. Tamil Nadu and Kerala)
var. heyneana (India : Andhra Pradesh, Tamil Nadu and Kerala. Endemic)
var. linearifolia Chandra & Ghosh (India: Tamil Nadu. Endemic)
Nothopegia racemosa (Dalz.) Ramamurthy in Saldanha & Nicholson (India : Western ghats, ascending up to 1650 m. Maharashtra, Goa, Karnataka, Tamil Nadu and Kerala. Endemic)
Nothopegia travancorica Beddome ex Hook.f. (India : Southern Western Ghats, ascending up to 1000 m. karnataka, Tamil Nadu and Kerala. Endemic)
Nothopegia vajravelui Ravikumar & Lakshmanan (India : Dominant along the slopes of dense, evergreen forests, particularly along perennial streamlets. Tamil Nadu)
From Biotik (Distribution):
Nothopegia beddomei Gamble (South India and Sri Lanka; in the Western_Ghats- South Sahyadri to Central Sahyadri)
Nothopegia heyneana (J. Hk.) Gamble var. heyneana (Endemic to Peninsular India; in the Western_Ghats- South and Central Sahyadri)
Nothopegia racemosa (Dalz.) Ramam. (India and Sri Lanka; in the Western_Ghats South and Central Sahyadri)
Nothopegia travancorica Bedd. ex J. Hk. (Endemic to Western_Ghats- South and Central Sahyadri)
FRLHT Indian Medicinal Plants Nomenclature Database :
Nothopegia castaneifolia (Roth) Ding Hou
Nothopegia (Anacardiaceae) page with images of species in efloraofindia : 1 post by 1 author.
Pl. go through Nothopegia (Anacardiaceae) page with images of species (done by me & Anurag ji) in efloraofindia.
If you find any mis-identification, pl. let us know. If anybody can send images of other species of this genera (for incorporation in the website), if any, it will be really nice.
Also, if anybody is interested to take up the activity of inserting images on efloraofindia pages from efloraofindia posts, pl. let us know.