130 NORTH AMERICAN FLORA [Volume 25 



4. Gaudichaudia mucronata (Moc. & Sesse) A. Juss. Ann. Sci. 



Nat. II. 13: 253. 1840. 



Hiraea mucronata Moc. & Sessg ; DC. Prodr. 1 : 586. 1824. 

 1 Hiraea <u yota Moc. & Sesse; DC. Prodr. 1 : 586. 1824. 

 ' Hiraea podocarpa Moc. & Sesse ; DC. Prodr. 1 : 586. 1824. 

 ? Hiraea acuminata Moc. & Sesse; DC. Prodr. 1 : 586. 1824. 

 Gaudichaudia filipendula A. Juss. Ann. Sci. Nat. II. 13 : 252. 1840. 

 ? Gaudichaudia podocarpa A. Juss. Ann. Sci. Nat. II. 13 : 253. 1840. 

 ? Gaudichaudia acuminata A. Juss. Ann. Sci. Nat. II. 13: 253. 1840. 

 ? Gaudichaudia oxvota A. Juss. Ann. Sci. Nat. II. 13 : 253. 1840. 

 ? Gaudichaudia Uhdeana Niedzu. Bot. Jahrb. Beibl. 30: 3. 1891. 



Leaf-blades oblong, ovate-oblong, or oblong-lanceolate, 3-8 cm. long, acute or mucro- 

 nate, bright-green and rather thinly pubescent above, pale and more copiously pubescent 

 beneath, mostly rounded or subcordate and more or lessauriculate, rather slender-petioled ; 

 sepals ovate to oval, 3-4 mm. long, the glands less than one half the length of the sepal- 

 body ; petals yellow, the larger ones 6-8 mm. long, the blades oblong to suborbicular, 

 erose-denticulate ; free portions of the filaments subulate, longer than the tube ; samaras 

 suborbicular, 8-10 mm. long, rounded at the apex, each with a dorsal keel. 



Type locality : Mexico. 



Distribution : Mexico and Central America. 



Illustrations : Moc. & Sessfi, Calq. Dess. pi. 124 ; Arch. Mus. Paris 3 : pi. 21, f. 34. 



5. Gaudichaudia Webbiana A. Juss. Ann. Sci. 

 Nat. II. 13: 152. 1840. 

 Leaf-blades oblong-ovate, 2.5-4.5 cm. long, mucronate, rather sparingly pubescent 

 above, copiously pubescent beneath, but partially glabrous in age, cordate at the base, very 

 short-petioled or nearly sessile; sepals oblong to oval, 3-4 mm. long, the glands about one 

 half the length of the sepal-body ; petals yellow, the larger ones 6-8 mm. long, the blades 

 suborbicular to oval, denticulate ; free portions of the filaments triangular-subulate, longer 

 than the tube ; samaras suborbicular or reniform, 10-12 mm. long, rounded or emarginate 

 at the apex, each with a dorsal wing-like keel. 



Type locality : Mexico. 

 Distribution : Mexico. 



6. Gaudichaudia Karwinskiana A. Juss. Ann. Sci. 



Nat. II. 13 : 252. 1840. 



Leaf-blades oblong-ovate to obovate, about 2.5 cm. long, mucronate, appressed- 

 pubescent above, more densely and loosely pubescent beneath, with 2 deflexed slender basal 

 auricles, short-petioled ; sepals ovate, about 3 mm. long ; petals glabrous, the blades sub- 

 orbicular, denticulate ; stamens 5, all anther-bearing, thus differing from the following 

 species. 



Type locality : Mexico. 



Distribution : Known only from the type locality. 



7. Gaudichaudia Schiedeana A. Juss. Arch. Mus. 



Paris 3: 591. 1844. 



? Gaudichaudia albida Schleeht. & Cham. Unnaea 5 : 217. 1830. 

 Triop/eris sericea Schleeht. Linnaea 10 : 243. 1836. 



Gaudichaudia sericea A. Juss. Ann. Sci. Nat. II. 13: 252. 1840. Not G. sericea St. Hil. 1823. 

 Gaudichaudia Pahneri S. Wats. Proc. Am. Acad. 21 : 421. 1885. 

 Janusia mexicana Brand. Zoe S : 203. 1905. 



Leaf-blades oblong, ovate-oblong, or ovate, 2-5 cm. long, mucronate, green and spar- 

 ingly appressed-pubescent above, pale and copiously appressed-pubescent beneath, obtuse 

 or rounded at the base, petioled, sometimes rather long-petioled ; sepals oblong to ovate, 

 4-5 mm. long, the glands one half as long as the sepal-body or less ; petals yellow, the 

 larger ones 9-12 mm. long, the blades laciniate-denticulate ; free portions of the filaments 

 subulate, much longer than the tube; samaras V-shaped, 15-20 mm. long, the upper lobes 

 ovate. 



Type locality : Malpays de Naulingo, Veracruz. 



Distribution : Mexico and Central America. 



