Keys from Flora of Bhutan:
l. Stems and leaves hairy . . .. 2
+ Stems and leaves glabrous (or rarely some hairs on stem only) .. .. 3
2. Leaves glabrous above. hairy below: corolla red: gynoecium glabrous except for minute sessile glands on ovary . … 1. A. gracilis
+ Leaves hairy on both surfaces (hairs sometimes sparse above): corolla white; stipe. ovary and style densely pubescent . .  2. A. chiritoides
3. Calyx divided to base or very nearly so . . . .. 4
+ Calyx with a distinct tube . . .. .. 8
4. Flowers in terminal and axillary clusters (1-5 flowers) lacking a peduncle: bracts inconspicuous . . .. 4. A. micranthus
+ Flowers in terminal and/or axillary pedunculate cymes, these either expanded or congested or the flowers sometimes solitary; bracts conspicuous (but sometimes caducous)  . .. 5
5. Bracts less than 1 cm long; cyme very open: corolla c 15mm. green with red lobes  . . .. 3. A. acuminatus
+ Bracts 1.5- 6cm long; cyme congested or flowers +/- solitary: corolla (also calyx and bracts) red . .. .. 6
6. Bracts 3.7- 6 cm long: corolla 6.5- 9cm . . . 5. A. superbus
+ Bracts 1.5- 3cm long; corolla 3.5-5 cm . . .. 7
7. Leaves broadest near base; peduncles l—5cm: corolla 3.5—4cm .…. 6. A. bracteatus
+ Leaves mostly broadest in middle or upper half: peduncles 5-12cm: corolla 4.3—5cm . . .. 7. A. peelii
8. Calyx and pedicels clad in spreading hairs .  .. 12. A. maculatus
+ Calyx and pedicels either glabrous (or rarely a few hairs tufted at tips of lobes) or clad in minute nearly sessile glands … 9
9. Calyx lobes very obtuse. mostly about 1/3 of the length of the tube ….. 8. A. hookeri
+ Calyx lobes acute (rarely subacute) to acuminate. either much longer than tube or very roughly equalling it .. .. 10
10. Corolla 3.5-5cm long. with remarkably coarse hairs inside lower part of tube . .. 9. A. parasiticus
+ Corolla 2-3cm long, without (or rarely 2-3) coarse hairs inside lower part of tube .  .. 11
11. Calyx glabrous. tube l.8-4mm long. lobes 6-12mm. roughly 2-4 times as long as tube . … I0. A. parviflorus
+ Calyx covered in minute almost sessile glands. tube 2—5mm long, lobes 2.5 —4.5mm, about equalling to slightly shorter than tube … 11. A. sikkimensis

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Images by Pankaj Kumar (Inserted by J.M.Garg) (For more photos & complete details, click on the links)

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Aeschynanthus species- Assam

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Aeschynanthus species- Sairep, Mizoram

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Aeschynanthus species in India:

  1. Aeschynanthus acuminatus Wall. ex A.DC.
  2. A. andamanensis Goel, M.K.V.Rao & Mehrotra [synonym of A.parasiticus (Roxb.) Wall.]
  3. A. angustioblongus W.T.Wang
  4. A. austroyunnanensis Wang [synonym of A. micranthus C.B.Clarke]
  5. A. bracteatus Wall. ex A.DC.
  6. A. ceylanicus Gardner
  7. A. chiritoides C.B. Clarke
  8. A. deleiensis C.E.C. Fisch. [synonym of A. parasiticus (Roxb.) Wall.]
  9. A. fulgens Wall. ex R. Br.
  10. A. griffithii R. Br.
  11. A. hookeri C.B. Clarke
  12. A. linearifolius C.E.C. Fisch.
  13. A. maculatus Lindl. [synonym of A. parviflorus (D.Don) Spreng.]
  14. A. mannii Kurz ex C.B. Clarke
  15. A. micranthus C.B. Clarke
  16. A. mimetes B.L. Burtt [synonym of A. parasiticus (Roxb.) Wall.]
  17. A. monetarius Dunn
  18. A. novogracilis W.T.Wang
  19. A. oblanceolatus (J.Anthony) C.E.C.Fisch. [synonym of A. linearifolius C.E.C. Fisch. var. oblanceolatus (J.Anthony) W.T.Wang]
  20. A. parasiticus (Roxb.) Wall.
  21. A. parviflorus (D.Don) Spreng.
  22. A. perrottetii A.DC.
  23. A. sikkimensis (C.B.Clarke) Stapf. [synonym of A. parviflorus (D.Don)Spreng.]
  24. A. stenosepalus J.Anthony
  25. A. superbus C.B.Clarke
  26. A. tirapensis Bhattacharyya
  27. A. volubilis Jack
  28. A. kingii C.B.Clarke

References:

  1. Bhattacharyya, U.C. & Goel, A.K. 2015. Systematic account of the genus Aeschynanthus Jack (Gesneriaceae) in India. Phytotaxonomy 14: 1-22.
  2. Datta, S., Paul, T.K. & Sinha, B.K. 2015. Aeschynanthus angustioblongus W.T.Wang (Gesneriaceae), an addition to Indian Flora. Phytotaxonomy. 14: 23-24.
  3. The Plant List (2013). Version 1.1.
    Published on the Internet; http://www.theplantlist.org/ (accessed 15 July 2015).

Pl. go through Aeschynanthus (Gesneriaceae‎‎‎‎‎‎‎‎‎‎‎) page with images of species in efloraofindia.

If you find any incorrect identification, pl. let us know. If anybody can send images of other species of this genera (for incorporation in the website), if any, or can identify unidentified images, it will be really nice.


 

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