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Studies in the North American Convolvulaceae — V. Quamoclit 



Homer Doliver House 



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by Linnaeus into Ipomoea. The type of the Tournefortian genus 

 Quamoclit is the species herein recognized under the name of 

 Quamoclit pimiata (Desr.) Boj. {Quamoclit Quamoclit Britton). 

 This species is by priority of citation the technical type of Ipomoea 

 and in restoring Quamoclit to generic rank, Moench unfortunately 

 takes up only Ipomoea coccinea in the genus, but credits the genus to 

 Tournefort. 



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The writer has already expressed his opinion regarding the 

 validity of Quamoclit and Ipomoea (Ann. N. Y, Acad. Sci. i8 : 



l8i. 



Quamoclit 



the sense typified by the Tournefortian type, and recognized under 

 the name of Quamoclit in all subsequent literature wherever Ipo- 



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\y placed in Ipomoea. 



Quamoclit Moench, Meth. 453. 1794 



Calboa Cav, Ic. 5; 51. 1799. 

 Macrostemma Pers. Syn. I : 185. 1805. 

 Mina Llav. & Lex. Nov, Veg. Descr. i : 

 MoreHoa^J.^v, & Lex. loc. cit, 5. • 

 :ema Raf. Fl. Tellur. 4 : 75. 1838. 



3. 1824. 



Doxema Raf. Fl. Tellur. 4 : 75. 

 Ne orthosis Raf. loc. cit, 125. 



Annual or perennial, twining, mostly herbaceous vines. Leaves 

 alternate ; blades entire, lobed or divided.* Flowers in axillary 

 usually 2-forked, few- or many-flowered clusters. Sepals 5, mem- 

 branaceous or herbaceous, equal or nearly so, often awned at or 

 near the apex with straight or recurved appendages. Corolla small 

 or medium-sized, the tube not expanding at the base, the limb sub- 

 salverform, cup-shaped or rarely funnelform, usually more or less 

 lobed. Stamens 5, with the style exserted and usually conspicu- 

 ously declinate ; filaments filiform. Ovary 2-celled, ovules 4; 

 stigma capitate. Capsules subglobose or somewhat elongated, the 

 style often persistent In fruit. Seeds smooth. 



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