Blinkworthia

Accepted name/Authority/Place of publication: 

BLINKWORTHIA Choisy, Mém. Soc. Phys. Genève 6: 430. t. 4. 1834.

Tribe: 
Ipomoeeae
Type Species: 

Blinkworthia lycioides Choisy

Habit: 
Erect shrubs or slender climbers.
Leaves: 
Leaves petiolate, linear or elliptic, sericeous or strigose.
Flowers: 
Flowers solitary, pedunculate, axillary; bracts 3–4, sepal-like, inserted in a whorl a little below calyx; pedicel 0–1 mm; sepals 5, ovate-oblong to circular, subequal, slightly enlarged and woody (not coloured) in fruit; corolla campanulate, waxy; limb erect, (sub)entire; stamens included, anthers oblong; pollen globose, pantoporate, finely spiny; pistil included, disc tubular, enclosing ovary, ovary conical, 2-celled, glabrous, style 1, filiform; stigma capitate, 2-lobed.
Pollen: 
Pollen globose, pantoporate, finely spiny.
Fruits: 
Fruit a berry, enclosed by persistent calyx, glabrous.
Seeds: 
Seeds 2–4, glabrous.
Distribution: 

Distributed in China, Myanmar and Thailand. map

Countries: 
China
Myanmar
Thailand
Number of Species: 
2
Infrageneric Characters: 

Blinkworthia was separated from Argyreia because of the shrubby, erect habit and solitary flowers; the second species is in fact a scandent shrub or climber. Collett and Hemsley (loc. cit.) amplified Choisy’s scanty generic characterization and added a number of details based on field observations: the corolla is broadly campanulate with an entire limb (not tubular); the nectariferous disc is tubular-cylindrical and engulfs the ovary (the disc persists in the dry fruit as a dark, leathery coating on the berry); the accrescent fruiting sepals are woody and brownish (not colourful); seeds are 2–4 in number. The genus is certainly very close to Argyreia and might be subsumed into it; Blinkworthia is maintained here, pending a thorough revision of Argyreia and allied genera.

References: 

Choisy, Mém. Soc. Phys. Genève 6: 430. t. 4. 1834

Collett & Hemsl., J. Linn. Soc., Bot. 28: 94. t. 15. 1890

R.C. Fang & Staplesin C.Y. Wu & P.H. Raven, Fl. China 16: 313. 1995

Author/Editor

Author: 
G.W. Staples
Editor: 
Esmond Er, G. Staples
Publication: 

Flora of Thailand Convolvulaceae 10(3): 373 (2010)

Contributors: 
Classification: 
Blinkworthia
Thu, 2011-06-09 07:23 -- Esmond
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