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

Flora Data (Last Modified On 4/9/2013)
Genus Mandevilla Lindl.
PlaceOfPublication Bot. Reg. n.s. 3: pl. 7. 1840.
Synonym Exothostemon G. Don, Gen. Syst. 4: 82. 1838, pro parte.
Description Lianas, undershrubs or herbs, lacticiferous. Leaves opposite or verticillate, glandular at the base of the midrib or along its-entire length, rarely non-glandular, pinnately-nerved; petioles somewhat perfoliate, glandular in the axils. Inflores- cences racemose, rarely obscurely compound, mostly axillary. Flowers medium- sized; bracteoles present; calyx 5-lobed, the lobes equal to subequal, bearing 1 to many alternate, opposite, or indefinitely distributed squamellae within; co- rolla infundibuliform, salverform, or tubular-salverform, without appendages, the tube straight or ? gibbous, the limb 5-lobed, dextrorsely convolute; stamens 5, + included, or half-exserted, the anthers connivent and agglutinated to the stigma, with an enlarged connective characterized by a pedestal-like projection; gynoecium 2-carpellate, apocarpous, the ovary superior, the ovules numerous, the nectaries 2-5, rarely absent, separate or ? united basally, the style 1, the stigma pentagonal-umbraculiform. Fruit apocarpous, of 2 follicles, continuous to monil- iform; seeds numerous, dry, truncate, comose apically.
Distribution A large genus of 100 or more species in Mexico, Jamaica, and Central and South America.
Note In Panama the four species of the genus are readily segregated from the re- maining Apocynaceae by their cordate to subhastate leaf bases and the elongated tube of the corolla.
Reference Woodson, R. E., Jr. Mandevilla. Pp. 645-777 in "The American genera of the Echitoideae." Ann. Missouri Bot. Gard. 20: 605-790. 1933.
Key a. Corolla tube straight; leaves glandular at the base of the midrib.... 1. M. veraguasensis aa. Corolla tube ? gibbous or arcuate; leaves sparsely glandular along the entire midrib. b. Corolla infundibuliform .................................. 2. M. hirsuta bb. Corolla salverform. c. Bracts scarious, 1-5 mm long ........................ 3. M. subsagittata cc. Bracts foliaceous or petaloid, 10-30 mm long .................. 4. M. villosa
 
 
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