Hymenidium

Hymenidium amabile (Craib & W. W. Sm.) M. G. Pimenov & F. V. Kljuykov (SE-Tibet, China (Sichuan, W-Yunnan), Bhutan, Chumbi, India (E-Himalaya) as per Catalogue of Life)

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Hymenidium benthamii (Wall. ex DC.) M. G. Pimenov & E. V. Kljuykov (E-Nepal, Bhutan, N-Myanmar [Burma] (Kachin), India (C- to E-Himalaya, NE-India, Assam) as per Catalogue of Life)

 

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Hymenidium brunonis (Wall. ex DC.) Lindl. (Jammu & Kashmir (Kashmir), Pakistan (Hazara), India (C- to W-Himalaya), Nepal, Bhutan, Sikkim as per Catalogue of Life)

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Keys from Flora of Bhutan
1. Large robust plants, usually more than 70cm tall and stems more than l.5cm thick at base …………. . . .  . . . .. 2
+ Smaller plants less than 70cm, but taller specimens (P. dentatum) with stems less than 1.5cm thick at base .. 3
2. Margin of pinnules serrate-dentate; styles short, up to 0.4mm  ………………1. P. angelicoides synonym for Pterocyclus angelicoides (Wall. ex DC.) Klotzsch
+ Margin of pinnules lacerate, deeply pinnatisect; styles longer, c l.25mm … 2. P. benthamii synonym for Hymenidium benthamii (Wall. ex DC.) M. G. Pimenov & E. V. Kljuykov
3. Unbranched fleshy herb with solitary, erect stems 1-2cm broad at base; petiole wings greatly expanded to 4 x 6cm in upper leaves and enveloping the inflorescence …. 3. P. amabile synonym for Hymenidium amabile (Craib & W. W. Sm.) M. G. Pimenov & F. V. Kljuykov
+ Stems not fleshy, usually branched above, less than 1cm broad at base; petioles variously winged but not as above …. 4
4. Stems, petioles and leaf rachis conspicuously white pubescent …………………………………… 4. P. pilosum synonym for Hymenidium pilosum (C. B. Cl. ex H. Wolff) M. G. Pimenov & E. V. Kljuykov
+ Plants glabrous or nearly so; umbels and/or leaf bases sometimes minutely puberulent .  .. 5
5. Calyx teeth present, more than 0.5mm, sometimes deciduous in fruit …………………………….6
+ Calyx teeth obsolete . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 7
6. Bracteoles more than 5mm wide, obovate with acuminate tip, silver-white with a green midrib, margin irregularly serrate; calyx teeth less than 1 mm long, linear-lanceolate . . . . . . . . . .. . . . . .. . . . . . . .. 5. P. album synonym for Hymenidium album (C. B. Cl. ex H. Wolff) M. G. Pimenov & E. V. Kljuykov
+ Bracteoles less than 5mm wide, lanceolate-oblanceolate, green with a narrow pale edge, margin usually distinctly papillate; calyx teeth unequal, longest more than lmm long, ovate-linear . . . . . . . . . .. 6. P. hookeri
7. Plants more than 50cm tall; bracteoles with a broad silver-white margin and dark purple-green midrib . . . . . . . …………. .. 7. P. dentatum synonym for Hymenidium dentatum (Wall. ex DC.) M. G. Pimenov & E. V. Kljuykov
+ Plants usually less than 30cm; bracteoles pale green, often tinged purple, but without a conspicuously darkened midrib . . 8. P. apiolens synonym for Hymenidium apiolens (C. B. Cl.) M. G. Pimenov & E. V Kljuykov


Pleurospermum species in India:
  1. Pleurospermum album C.B.Clarke synonym for Hymenidium album (C. B. Cl. ex H. Wolff) M. G. Pimenov & E. V. Kljuykov
  2. P. amabile W.G.Craib & W.W.Sm. synonym for Hymenidium amabile (Craib & W. W. Sm.) M. G. Pimenov & F. V. Kljuykov
  3. P. angelicoides (Wall. ex DC.) Benth. ex C.B.Clarke synonym for Pterocyclus angelicoides (Wall. ex DC.) Klotzsch
  4. P. apiolens C.B.Clarke synonym for Hymenidium apiolens (C. B. Cl.) M. G. Pimenov & E. V Kljuykov
  5. P. austriacum (L.) Hoffm.
  6. P. benthamii (Wall. ex DC.) C.B.Clarke synonym for Hymenidium benthamii (Wall. ex DC.) M. G. Pimenov & E. V. Kljuykov
  7. P. brunonis (DC.) C.B.Clarke synonym for Hymenidium brunonis (Wall. ex DC.) Lindl.
  8. P. candollei (DC.) C.B.Clarke synonym for Hymenolaena candollei DC.
  9. P. cavalerii M.Hiroe synonym for Tongoloa fortunatii (H. Boiss.) M. G. Pimenov & E. V. Kljuykov
  10. P. corydalifolium Aitch. & Hemsl. synonym for Hymenidium corydalifolium (Aitch. & Hemsl.) M. G. Pimenov & E. V. Kljuykov
  11. P. densiflorum (Lindl.) C.B.Clarke synonym for Hymenidium densiflorum Lindl.
  12. P. dentatum (DC.) C.B.Clarke synonym for Hymenidium dentatum (Wall. ex DC.) M. G. Pimenov & E. V. Kljuykov
  13. P. erosum (DC.) P.K.Mukh. synonym for Hymenidium dentatum (Wall. ex DC.) M. G. Pimenov & E. V. Kljuykov
  14. P. hookeri C.B.Clarke
  15. P. lindleyanum (Klotzsch) B.Fedtsch. synonym for Hymenidium nanum (Rupr.) M. G. Pimenov & E. V. Kljuykov
  16. P. pilosum C.B.Clarke synonym for Hymenidium pilosum (C. B. Cl. ex H. Wolff) M. G. Pimenov & E. V. Kljuykov
  17. P. pumilum (DC.) C.B.Clarke synonym for Hymenidium dentatum (Wall. ex DC.) M. G. Pimenov & E. V. Kljuykov
  18. P. rotundatum (DC.) C.B.Clarke synonym for Pterocyclus rotundatus (Wall. ex DC.) M. G. Pimenov & E. V. Kljuykov
  19. P. stellatum (D.Don) Benth. ex C.B.Clarke synonym for Hymenidium stellatum (D. Don) M. G. Pimenov & E. V. Kljuykov
  20. P. stylosum C.B.Clarke synonym for Aulacospermum stylosum (C. B. Cl.) Rech. fil. & Riedl
  21. P. wilsonii H.Boissieu synonym for Hymenidium wilsonii (H. Boiss.) M. G. Pimenov & E. V. Kljuykov

References

  1. Karthikeyan, S., Sanjappa, M. and Moorthy, S. 2009. Flowering Plants of India, Dicotyledons, vol-I (Acanthaceae- Avicenniaceae). Botanical Survey of India, Kolkata. pp. 125-126.
  2. eFI page


 

Species with description & pictures in Flowers of India as on 6.6.15: 

Botanical name Synonyms Family Common name

Pleurospermum brunonis synonym for Hymenidium brunonis (Wall. ex DC.) Lindl. Hymenolaena brunonis, Hymenidium brunonis, Ligusticum brunonis Apiaceae Brown’s Paper Cup Flower
Pleurospermum candollei synonym for Hymenolaena candollei DC. Apiaceae Paper Cup Flower
Pleurospermum stellatum synonym for Hymenidium stellatum (D. Don) M. G. Pimenov & E. V. Kljuykov Selinum stellatum, Hymenolaena stellata Apiaceae Star Papercup Flower

 
 
Pleurospermum angelicoides (DC.) C. B. Clarke (Himalaya (Kumaun to Bhutan), Assam, Tibet, Yunnan) synonym for Pterocyclus angelicoides (Wall. ex DC.) Klotzsch
Pleurospermum benthamii (DC.) C. B. Clarke (E. Himalaya (Nepal to Bhutan), Assam, N. Burma, Tibet, Yunnan) synonym for Hymenidium benthamii (Wall. ex DC.) M. G. Pimenov & E. V. Kljuykov
Pleurospermum davidii Franch. (No distribution given) is a synonym of Pleurospermum benthamii (Wall. ex DC.) C.B. Clarke [Bhutan, N Myanmar, E Nepal, Sikkim].
Pleurospermum hookeri C. B. Clarke (Himalaya (Kashmir to Bhutan), Tibet, W. China (Szechuan))
 
Pleurospermum hookeri var. hookeri [Bhutan, Nepal, Sikkim].
 
Forest Plants of Eastern India By Amal Bhusan Chaudhuri (1993)- Details-
Pleurospermum sikkimense C.B. Clarke is a synonym of Pleurospermopsis sikkimensis (C.B. Clarke) C. Norman

 
Floristic Plants of the World By Rashtra Vardhana (2006)- Brief details-
 
Hot spots of endemic plants of India, Nepal and Bhutan by M. P. Nayar – Tropical Botanic Garden and Research Institute, 1996 – Science – 252 pages-
Pleurospermum candollei (DC). C.B. Clarke : short hollow stout stem 10-20cm; Western Himalaya … synonym for Hymenolaena candollei DC.

 
Uses and Abuses of Plant-Derived Smoke: Its Ethnobotany as Hallucinogen … By Marcello Pennacchio, Lara Jefferson, Kayri Havens (2010)- Brief details-
 
Pleurospermum (‎Apiaceae) : 1 post by 1 author.

I have updated eFI (efloraofindia) page on Pleurospermum (Pl. click).

Attempts have been made to incorporate most of the species available in India & nearby areas with details & keys directly or through links as far as possible. It’s quite possible that there may be some discrepancy in the accepted names & synonyms taken from other links.

Species discussed so far in efloraofindia are given at the bottom of the page in the form of links against Subpages. On clicking them one can see all the details.

If someone can provide complete list of Indian species with source references it will be wonderful.

Any comments/ corrections are welcome.


Pl. go through Pleurospermum page (‎‎‎Apiaceae) with images of species in efloraofindia (done by me).

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), 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.

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