Polystachya stuhlmannii Kraenzl.

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Synonyms: Polystachya adansoniae Rchb. f. var. stuhlmannii (Kraenzl.) Geerinck
Common names:
Frequency:
Status: Native
Description:
Dwarf epiphytic herb. Pseudobulbs oblong to conical, 10–15 mm high, ribbed, somewhat flattened bilaterally, 2-leaved. Leaves linear, 4–14 cm long, slightly 2-lobed at the apex. Inflorescence 2.5–5.5 cm tall, densely many-flowered. Flowers very small, greenish-yellow or whitish, tinged with purple, often not opening but apparently self fertilizing. Bracts 4–7 mm long. Dorsal sepal ovate, 1.6–2 mm long, acuminate; lateral sepals obliquely ovate, 2–3.5 mm long, acuminate. Petals narrowly oblong, 1.25 mm long. Lip 3-lobed in the basal half, 1.3–2.3 mm long, with a hairless callus at the junction of the lobes; mid-lobe ovate, c. 1 mm long; side lobes rounded, erect.
Notes: This species is very similar to Polystachya adansoniae and can be distinguished by smaller flowers and a hairless callus on the lip.
Derivation of specific name: stuhlmannii: named after Franz Ernst Stuhlmann, one time Acting Governor of Tanganyika and an avid collector of plants.
Habitat: Evergreen forest and high rainfall Brachystegia woodland
Altitude range: (metres) 900 - 1550 m
Flowering time:
Worldwide distribution: Gabon, DRC, Uganda, Tanzania, Malawi, Mozambique, Zambia and Zimbabwe.
Zimbabwe distribution: E
Growth form(s):
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters: Display spot characters for this species
Literature:

Kimberley, M.J. (2003). A List of Epiphytic Orchids of Zimbabwe Excelsa 20 Page 50.

La Croix, I. & Cribb, P.J. (1998). Orchidaceae (Part 2) Flora Zambesiaca 11(2) Pages 336 - 338.

La Croix, I. et al. (1983). Malawi Orchids Volume 1 Epiphytic Orchids National Fauna Preservation Society of Malawi Page 121. (Includes a picture).

La Croix, I. et al. (1991). Orchids of Malawi A.A. Balkema, Rotterdam Page 215. (Includes a picture).

La Croix, I.F. & La Croix T.M. (1983). Orchids of Bvumbwe The Society of Malawi Journal 36(2) Page 17.

Mapaura, A. & Timberlake, J. (eds) (2004). A checklist of Zimbabwean vascular plants Southern African Botanical Diversity Network Report No. 33 Sabonet, Pretoria and Harare Page 97.

Phiri, P.S.M. (2005). A Checklist of Zambian Vascular Plants Southern African Botanical Diversity Network Report No. 32 Page 124.


Other sources of information about Polystachya stuhlmannii:

Our websites:

Flora of Malawi: Polystachya stuhlmannii
Flora of Mozambique: Polystachya stuhlmannii
Flora of Zambia: Polystachya stuhlmannii

External websites:

African Plants: A Photo Guide (Senckenberg): Polystachya stuhlmannii
African Plant Database: Polystachya stuhlmannii
BHL (Biodiversity Heritage Library): Polystachya stuhlmannii
EOL (Encyclopedia of Life): Polystachya stuhlmannii
ePIC (electronic Plant Information Center): Polystachya stuhlmannii
Flora Zambesiaca web site: Polystachya stuhlmannii
GBIF (Global Biodiversity Information Facility): Polystachya stuhlmannii
Google: Web - Images - Scholar
GRIN (Germplasm Resources Information Network): Polystachya stuhlmannii
iNaturalist: Polystachya stuhlmannii
IPNI (International Plant Names Index): Polystachya stuhlmannii
JSTOR Plant Science: Polystachya stuhlmannii
Kew Herbarium catalogue: Polystachya stuhlmannii
Kew Monocotyledon checklist: Polystachya stuhlmannii
Mansfeld World Database of Agricultural and Horticultural Crops: Polystachya stuhlmannii
Plants of the World Online: Polystachya stuhlmannii
The Plant List (version 1.1): Polystachya stuhlmannii
Tropicos: Polystachya stuhlmannii
Wikipedia: Polystachya stuhlmannii


Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2002-19

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2019). Flora of Zimbabwe: Species information: Polystachya stuhlmannii.
https://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=118440, retrieved 19 October 2019

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