_Vitis longii_ is a vigorous form of the Riparia type with pubescent young growth, differing from the typical Riparia in having more circular, less lobed leaves and more incised teeth. Its leaves are frequently pubescent beneath. Another form with dentate margin of leaf has been known under the name of Nuevo Mexicana or Novo Mexicana. The references to these two forms are inextricably confused. Engelmann refers to this grape which he says he found growing in the botanic garden of Berlin under the name of _Vitis solonis_. After careful investigation he decided that this name was a corruption of _Vitis longii_, or Long's grape, which had been brought from the headwaters of the Arkansas river by Major Long's expedition into that then unknown country in the early part of the last century. Many botanists consider this a hybrid of two or more other species, Riparia, Rupestris, Candicans and Cordifolia being offered as probable parents. Its habitat is northern Texas "westward into New Mexico, eastward into Oklahoma and northward into Kansas and southeastern Colorado." _Vitis longii_ was first described by Prince in 1830. The fruit is small and sour and it appears to be of no horticultural promise. =VITIS LONGII MICROSPERMA= Bailey. =1.= Munson, _Soc. Prom. Ag. Sci. Rpt._, =1887=:59. V. NOVO MEXICANA VAR.; _Munson's Riparia_. =2.= Munson, _Rev. Vit._, =3=:160.--. V. SOLONIS, var. MICROSPERMA (cited by 3). =3.= Bailey, _Gray's Syn. Fl._, =1=:423. 1897. V. LONGII, var. MICROSPERMA; _V. Solonis_, var. _microsperma_. _Vitis longii microsperma_ is a small seeded, vigorous form of _Vitis longii_ growing on the Red River in north Texas. It is said to be more resistant to drought than the normal form. 8. =VITIS CHAMPINI= Planch.[140] =1.= Planchon, _Journ. La Vigne amer._, =6=:22. 1882 (cited by 4). =2.= Munson, _Am. Hort. Soc. Rpt._, =1885=:137. =3.= Ib., _Am. Pom. Soc. Rpt._, =1885=:101. =4.= Planchon, _De Candolle's Mon. Phan._, =5=:323, 327, 328. 1887. _Champin grape._ =5.= Munson, _Gar. and For._, =3=:474, 475. 1890. =6.= Ib., _U. S. D. A. Pom. Bul._, =3=:11. 1890. =7.= Ib., _Am. Gard._, =12=:661. 1891. _Champin grape._ =8.= Ib., _Bush. Cat._, =1894=:20, 22, 25. =9.= Bailey, _Gray's Syn. Fl._, =1=:423. 1897. =10.= Beach, _N. Y. Sta. An. Rpt._, =17=:536, 557. 1898. =11.= Munson, _Tex. Sta. Bul._, =56=:232, 234, 235, 240, 268. 1900. _fig. Adobe Land grape._ =12.= Viala and Ravaz, _Am. Vines_, =1903=:145.