Gentiana cephalodes

Gentiana cephalodes Edgew.,  in Hook., J. B. 4: 637, t. 20 (sub G. baconi) (1845); in Tr. Linn. S. 20: 84 (1846) as per Annotated checklist of Flowering plants of Nepal;

1800-3000 m; Himalaya (Kumaun to Bhutan), Assam, N. Burma as per Annotated checklist of Flowering plants of Nepal;
Gentiana capitata Buch.-Ham. ex D.Don : 14 posts by 4 authors. Attachments (3)- 1 Mb each. 
Location: Nagarkot,  Kathmandu
Date: 03 August  2019
Elevation: 1888 m.
Habit : Wild

This is Gentiana cephaloides not G.capitata
how should I differentiate them? please tell me

Thank you … for correcting ID. In that case it will be a new entry to efi. By the way i did not find any image in the net for cross verification.
And also, ACFPN states as Gentiana cephalodes !

I recently published a paper entitled " On the Occurance of Gentiana cephaloides (Gentianaceae) in Garhwal Himalaya" Please check it the attachment. 
Attachments (1)- 20. Main text 158-161 (5).pdf- 692 kb.

Could you please check my other posts on G. capitata whenever free?
Sorry, correct spelling- G. cephalodes

Thank you for the paper but I am still no more informed. sorry. I need this in plain English so that non-botanist enthusiast like me (citizen botany liker) can understand the difference. can you do that ???
G. cephalodes is differentiated from G. capitata by long naked slender stem, bearing a capitate inflorescence, enveloped by 4-broadly elliptic, petiolate leaves, calyx lobes triangular, apex capitate and flowers from mid-summer to autumn
but that's not plain English. that's ok. I will get someone else to translate it for me.