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:
References
Species with description &
Pleurospermum brunonis (DC.) C.B. Clarke in Hook. f. (Himalayas in India and W. Pakistan) synonym for Hymenidium brunonis (Wall. ex DC.) Lindl.
Pleurospermum candollei (DC.) C.B. Clarke in Hook. f. (Himalayas in India and W. Pakistan) synonym for Hymenolaena candollei DC.
Pleurospermum corydalifolium Aitch. & Hemsl. (Afghanistan, Kurram in W. Pakistan) synonym for Hymenidium corydalifolium (Aitch. & Hemsl.) M. G. Pimenov & E. V. Kljuykov
Pleurospermum govanianum (DC.) C.B. Clarke in Hook. f. (India, W. Pakistan) synonym for Hymenidium stellatum (D. Don) M. G. Pimenov & E. V. Kljuykov
Pleurospermum stellatum var. lindleyanum (K1.) C.B. Clarke in Hook. f. (Type: Himalaya, Hoffmeister (probably destroyed)) synonym for Hymenidium nanum (Rupr.) M. G. Pimenov & E. V. Kljuykov
Pleurospermum stylosum C.B. Clarke in Hook. f. (Afghanistan, India, W. Pakistan) synonym for Aulacospermum stylosum (C. B. Cl.) Rech. fil. & Riedl
Pleurospermum angelicoides (DC.) C. B. Clarke (Himalaya (Kumaun to Bhutan), Assam, Tibet, Yunnan) synonym for Pterocyclus angelicoides (Wall. ex DC.) Klotzsch
Pleurospermum apiolens C. B. Clarke (Himalaya (Nepal, Sikkim)) synonym for Hymenidium apiolens (C. B. Cl.) M. G. Pimenov & E. V Kljuykov
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 brunonis (DC.) C. B. Clarke (Himalaya (Kashmir to Nepal)) synonym for Hymenidium brunonis (Wall. ex DC.) Lindl.
Pleurospermum crassicaule H. Wolff (No distribution
given) is a synonym of Pleurospermum wilsonii H. Boissieu [Nepal]. 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 dentatum (DC.) C. B. Clarke (Himalaya (Kumaun, Nepal)) synonym for Hymenidium dentatum (Wall. ex DC.) M. G. Pimenov & E. V. Kljuykov
Pleurospermum glacialis (Bonner) M. Hiroe (No distribution given) synonymous with Cortiella hookeri (C.B.Clarke) C.Norman
Pleurospermum hookeri C. B. Clarke (Himalaya (Kashmir to Bhutan), Tibet, W. China (Szechuan))
Pleurospermum pumilum (DC.) C. B. Clarke (No distribution given) synonym for Hymenidium dentatum (Wall. ex DC.) M. G. Pimenov & E. V. Kljuykov
Pleurospermum rotundatum (DC.) C. B. Clarke (Apparently confined to Nepal) synonym for Pterocyclus rotundatus (Wall. ex DC.) M. G. Pimenov & E. V. Kljuykov
Pleurospermum stellatum (D. Don) C. B. Clarke (Nepal) synonym for Hymenidium stellatum (D. Don) M. G. Pimenov & E. V. Kljuykov
Some species found in India with description & keys from Flora of China (Distribution other than China):
Pleurospermum album C. B. Clarke ex H. Wolff [Bhutan, Nepal, Sikkim] synonym for Hymenidium album (C. B. Cl. ex H. Wolff) M. G. Pimenov & E. V. Kljuykov
Pleurospermum amabile Craib & W. W. Smith [Bhutan, Sikkim] synonym for Hymenidium amabile (Craib & W. W. Sm.) M. G. Pimenov & F. V. Kljuykov
Pleurospermum angelicoides (Wallich ex de Candolle) C. B. Clarke in J. D. Hooker [Bhutan, Kashmir, Myanmar, Nepal, Sikkim] synonym for Pterocyclus angelicoides (Wall. ex DC.) Klotzsch
Pleurospermum apiolens C. B. Clarke in J. D. Hooker [Bhutan, Nepal, Sikkim] synonym for Hymenidium apiolens (C. B. Cl.) M. G. Pimenov & E. V Kljuykov
Pleurospermum benthamii (Wallich ex de Candolle) C. B. Clarke in J. D. Hooker [Bhutan, N Myanmar, E Nepal, Sikkim] synonym for Hymenidium benthamii (Wall. ex DC.) M. G. Pimenov & E. V. Kljuykov
Pleurospermum hookeri var. hookeri [Bhutan, Nepal, Sikkim].
Pleurospermum lindleyanum (Klotzsch) B. Fedtschenko [NW India, Kashmir, Pakistan] synonym for Hymenidium nanum (Rupr.) M. G. Pimenov & E. V. Kljuykov
Pleurospermum pilosum C. B. Clarke ex H. Wolff [Bhutan, Sikkim] synonym for Hymenidium pilosum (C. B. Cl. ex H. Wolff) M. G. Pimenov & E. V. Kljuykov
Pleurospermum rotundatum (de Candolle) C. B. Clarke in J. D. Hooker [Nepal] synonym for Pterocyclus rotundatus (Wall. ex DC.) M. G. Pimenov & E. V. Kljuykov
Pleurospermum stellatum (D. Don) C. B. Clarke in J. D. Hooker [NW India, Kashmir, C and W Nepal, Pakistan] synonym for Hymenidium stellatum (D. Don) M. G. Pimenov & E. V. Kljuykov
Pleurospermum stylosum C. B. Clarke in J. D. Hooker [Afghanistan, NW India, Kashmir, Pakistan] synonym for Aulacospermum stylosum (C. B. Cl.) Rech. fil. & Riedl
Pleurospermum wilsonii H. de Boissieu [Nepal] synonym for Hymenidium wilsonii (H. Boiss.) M. G. Pimenov & E. V. Kljuykov
Forest Plants of Eastern India By Amal Bhusan Chaudhuri (1993)- Details-
Pleurospermum benthamii (Wallich ex de Candolle) C. B. Clarke in J. D. Hooker synonym for Hymenidium benthamii (Wall. ex DC.) M. G. Pimenov & E. V. Kljuykov
Pleurospermum dentatum (DC.) C. B. Clarke synonym for Hymenidium dentatum (Wall. ex DC.) M. G. Pimenov & E. V. Kljuykov
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-
Pleurospermum densiflorum Benth. ex C.B.Clarke (Unresolved) synonym for Hymenidium densiflorum Lindl.
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. Pleurospermum page (Apiaceae) with images of species in efloraofindia : 1 post by 1 author.
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. |