6 VITIS, OR 



useful in making them known, and may lead to a better 

 one when all may be examined on my plan. Many va- 

 rieties have no doubt escaped my researches, they abound 

 in the woods, since the seeds do not always re-produce 

 the identic kind, and Major Adlum has stated to me to 

 have seen 200 varieties at least : some, however, differ 

 but slightly ; my enumeration is ample enough to in- 

 clude all the piincipal kinds. My distinguishing cha- 

 racters will be taken from all the parts, branches, pe- 

 tioles, leaves, flowers, and fruits. I will thus offer what 

 has hardly been done yet for the Grapes of Europe, 

 Asia, and Africa ; it will be the result of my observa- 

 tions during many years and many thousand miles of 

 travels. Our vines being all wild (except a few trans- 

 planted in gardens) exhibit the spontaneous operation of 

 nature and hybridity in this fine and valuable genus. 



The following are the jienera akin to Fitis, and be- 

 longing to the same natural order of Sarmentacea, distin- 

 guished by Stamens equal in number to the petals ; op- 

 posed to them and inserted on a hypogynous disk: one 

 pistil and stigma,fruit a berry. 



1. G. Cisstis. L. Calvx entire. Petals 4, not coherent. 

 Stamens 4, disk cup-like. Berry one seeded. Many 

 tropical species. 



2. G. Ampelopsis. Mx. Calyx 5 toothed. Petals 5, 

 not coherent nor hooded. Stamens 5. Disk cup-like 

 lobed. Short style. Berry 2 locular, 2 or 4 seeded. .R. 

 bipinnata, (F. arborea, L.) and *5. cordifolia of North 

 America. 



3. G. Quinaria. Raf. Calyx 4 or 5 lobed. Petals 4 or 

 5 hooded, not coherent. Stamens 4 or 5. Disk as in Vi- 

 lis. A style. Berry 4 locular, 4 seeded. Q. hederacea, 

 (or Ampelopsis quinqiiefolia) and Q. hirsiita of North 

 America. 



4. G. Causonis. Raf. Calyx 4 toothed. Petals 4, hood- 

 ed, not coherent. Diak 4 lobed, with 4 sterile filaments 

 alternate with the lobes. Stamens 4. Style filiform. 

 Berry one seeded. The V.trifolia and V.japonica be- 

 long here. 



The F. /jcfero;)%//a of Thunberg does not even belong 

 to tliis order, but to the same as Hedera or Ivy. I call 

 it G. Allosampela. Calyx superior persistent, with 5 ob- 



