12f VITIS. No. 99 & 100. 



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

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

 rietites have no doubt escaped my researches, they abound 

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

 tlae 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 principal kinds. My distinguishing cha- 

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

 tioles, leaves, flowers, and fruits. I will thus ofier 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 nybridity in this fine and valuable genus. 



The following are the o-enera akin to Vitis. 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 stigrna^fruit a berry. 



1. G. Cissus^ L. Calyx 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, v?. 

 bipinnata^ (F. arbona^ L.) and A. 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- 

 tis. A style. Berry 4 locular, 4 seeded. Q. hederacea^ 

 (or Ampelopsis quinquefo Ha) and Q. hirsuta of North 

 America. 



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

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

 alternate with the lobes. Stamens 4. Styl-e filiform. 



B^rry one seeded. The F. fri/b/t'a and F. japonic a be- 

 long here. 



'I he r, /i^f€ro;>%Z/aofThunberg does not even belong 



•?}l^^^an' ^"^^ ^^ ^^^ ^a^^^e as Hedera or Ivv. I cali 

 It G. miommpela. Calyx superior persistent, with 5 ob- 



