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Project Name Data (Last Modified On 4/9/2013)
 

Flora Data (Last Modified On 4/9/2013)
Genus Lochnera Reichenb.
PlaceOfPublication Consp. Regni Veg. 134. 1828.
Synonym Catharanthus G. Don, Gen. Syst. 4: 95. 1837 (1838).
Description Herbs, annual or perennial, subsucculent or sometimes subshrubs, lacticifer- ous. Leaves opposite, non-glandular, pinnately-nerved, sometimes slightly succu- lent; petiolate, glandular in the axils. Inflorescences cymose, sessile, sometimes reduced to a single flower, axillary. Flowers medium-sized; calyx 5-lobed, the lobes + equal, without squamellae; corolla salverform, white to pink, without appendages, but the tube sometimes thickened near the orifice, the limb 5-lobed, sinistrorsely convolute; stamens 5, barely included, the anthers free and not ag- glutinated to the stigma, without an enlarged connective; gynoecium 2-carpellate, apocarpous, the ovary superior, the ovules numerous, the nectaries 2, as high as the carpels and alternate with them, the style 1, the stigma pentagonal-umbra- culiform. Fruit apocarpous, of 2 terete follicles; seeds numerous, dry, subcom- pressed, naked.
Habit Herbs
Distribution A genus of six species, four endemic to Madagascar, one to India, and one pantropical.
Note There is some disagreement concerning the validity of the generic name, Lochnera Reichenb., as opposed to Catharanthus G. Don. I follow Dwyer (Lloydia 27: 282-285. 1964) in using 'Lochnera, but admit that due to Reichenbach's (Consp. Regni Veg. 134. 1828) indirect reference to a previously published de- scription, the choice is a tenuous one.
 
 
 
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