62 ART. I. B. HAYATA I 



Rhamnus arguta Maxim, var. Nakaharai ïïayaïa FJ. Mont. 

 Formos. p. 70. 



The present plant is described in my paper above cited as 

 representing a variety of Rhamnus arguta Maxim. At Kew, I have 

 examined the co-type of the latter plant and found that the diffe- 

 rence between the type and the variety is so great that I have 

 thought it better to raise the latter to specific rank. The new 

 species differs from the other in having slender flowers with longer 

 styles, and still more in the snpra-axillary inflorescence. 



Ampelideae. 

 Vltis Linn. 



Vitis dentata Hayata sp. nov. Eami fulvo-tomentosi, (pilis 

 patentibus brevibns), vel subglabrati, remote foliati. Folia 3-folio- 

 lata, petiolata), stipulata, in ambitu late triangularia membranacea, 

 10 cm. longa, 13 cm. lata, foliolo terminali oblonge, 9 cm. longo 

 4^ cm. lato, apice obtuso-acuminato basi rotundato-acuto, remote 

 dentato, (dentibus ascendentibus brevissime aristatis), ntrinque 

 glabro, petiolulo 5 mm. longo, foliolis lateralibus oblique oblonge - 

 ovatis apice obtuso-acntis, basi oblique rotundatis latere superiore 

 acutis, inferiore rotundatis, 7J cm. longis, 4 cm. latis, breve 

 petiolulatis, petiolulis 5 mm. longis ; petiolis 3J cm. longis, stipulis 

 oblongo-rotundatis obtusis 6 mm. longis, medio ad axillas aflixis, 

 medio crassiusculis maculatis margine membranaceis basi caulem 

 semi-amplectantibus. Cymse oppositifoliae, 4 cm. longse totiusque 

 latae, ramuhs rectangulare dispositis, pedunculis pedicelhsque 

 pubescentibus, pilis patentissimis, bracteis et bracteolis caducissi- 

 mis. Fl. Ç : calyces complanati, lobis brevissime triangularibns 



