STANDLEY TREES AND SHRUBS OF MEXICO. 571 



2. Gaudichaudia schiedeana .Inss. Areli. Mils. Hist. Nat. (Paris) 3: 591. 1844. 

 1 Gdiidichuudia albida Schlecht. & Cham. Liimaea 5: 217. 1830. 



Triopteris sericea Scblecht. Linnaea 10: 243. 1836. 



Gmtdichaiidia pahneri S. Wats. Proc. Aiuer. Acad. 21: 421. 1885. 



Janusia mexicana T. S. Brandeg. Zoe 5: 203. 1905. 



Sonora to Oaxaca and Veracruz ; type from Malpais de Naolinco, Veracruz. 

 Central America. 



Slender sericeous shrub ; leaves oblong to ovate or oval, 2 to 5 cm. long, 

 obtuse or rounded at base ; petals 9 to 12 mm. long ; samaras 1.5 to 2 cm. 

 long. 



3. Gaudichaudia confertiflora Juss. Ann. Sci. Nat. II. 13: 252. 1840. 

 Gaudichaudia co7iyestiflora Juss. Arch. Mus. Hist. Nat. (Paris) 3: 590. 1844. 

 Reported from Aguascalientes, and probably occurring elsewhere. 



Leaves 2 to 5 cm. long ; petals 6 to 7 mm. long ; samaras 1 to 1.4 cm. long. 



4. Gaudichaudia pentandra Juss. Ann. Sci. Nat. II. 13: 252. 1840 

 Jalisco to Hidalgo and Puebla ; type from Sultepec, Mexico. 



Leaves lanceohite to ovate-oblong, 3 to 6 cm. long, densely pubescent ; petals 

 6.5 to 7.5 mm. long; samaras 8 to 10 mm. long. 



5. Gaudichaudia arnottiana Juss. Ann. Sci. Nat. II. 13: 252. 1840. 

 Sinaloa to Jalisco and Morelos ; type from Jalisco. 



Leaves oblong to oval, 2 to 7 cm. long ; petals 1.5 to 1.8 cm. long ; samaras 

 1.4 to 1.8 cm. long. 



6. Gaudichaudia cynanchoides H. B. K. Nov. Gen. & Sp. 5: 158. pi. M5. 1822. 

 • Type from Morelia, Michoaciin. 



Leaves oblong, 2 to 5 cm. long ; petals 6 to 7 mm. long. 



The following vernacular names have been reported, but they probably refer 

 to other species : " Hierba del zoi-ro," " xunequiltzio," " xunequiltl." 



7. Gaudichaudia mucronata (Moc. & Sesse) Juss. Ann. Sci. Nat. II. 13: 253. 



1840. 



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



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



1 Hiraea podocarpa Moc. & Sess6 ; DC. Prodr. 1: 586. 1824. 



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



Gaudichaudia fiUpenduIa Juss. Ann. Sci. Nat. II. 13: 252. 1840. 



Sonora and Chihuahua to San Luis Potosi, Veracruz, and Oaxaca ; reported 

 from Yucatan. Central America. 



Leaves oblong or ovate, 3 to 8 cm. long, often auriculate at base; petals 6 to 

 8 mm. long; samaras 8 to 10 mm. long. " Chilillo-ak " (Yucatan). 



8. Gaudichaudia webbiana Juss. Ann. Sci. Nat. II. 13: 152. 1840. 

 Described from Mexico, the locality not known. 



Leaves oblong-ovate, 2.5 to 4.5 cm. long; petals 6 to 8 mm. long; samaras 10 

 to 12 mm. long. 



DOUBTFUL SPECIES. 



Gaudichaudia mollis Benth. PI. Hartw. 6. 1839. Type from Aguascalientes. 



Gaudichaudia enrico-maktinezii Barceua, Mex. Minist. Fom. Anal. 3: 149. 

 1878. 



9. TETBAPTERIS Cav. Monad. Diss. 438. 1790. 



Scandent or reclining siirubs ; leaves opposite, entire ; calyx with 8 glands ; 

 petals yellow, entire or dentate; fruit of 3 samaras, each of these 4-winged. 



