S46 BULLETIN DE l'hERBIER BOISSIER. (2) 



1856. is an African and Australian species also occnring in India, China 

 and Java. P. gracüis Wolfg. in R. et S. Sys. Manl, 3, 3So, 1827 = P. gra- 

 mineus L. var. mongoliens Maximoz. ined ; is also a Siberian and north 

 European plant. 



Of Ihe above perhaps the must interesting is P. cristatus Reg. & 

 Mack.. the évolution of its almost grotesque fruit, wonld be an interesting 

 study, but must be conducted on fresh spécimens, in situ. It seems to be 

 everywhere it is found a very rare species, 3 or 4 stations in Japan, and 

 one in each of the other there countries it occurs in, being all there is on 

 record. 



By the kindness of M. Autran, I have seen the collection of the Père 

 Faurie from Japan, among them I find examples that I cannot seperate 

 specifically, or subspecifically from jP. Robbinsi Oakes in Hovey's Magazine, 

 7, 180, 1841, at least to my idea of species. I propose to call it var. japo- 

 nicus, I am aware that the use of this name in the genus before wonld 

 by some invalidate it, but, it not only expresses geographica! afflnity, but 

 precludes anyone raising it to specific rank, as there is a P. japonicus 

 Franch et Sav. PI. Jap., 2, 15, 1879 (nomen). 



Of the other more widely distributed species Japan posseses : 



P. pectiiiatus L. 



P. flabellatus Bab? spécimens very poor, and not certain. 



P. crispus L. 



P. perfoliatus L. 



P. natans L. 



P. polygonifolius Pour. 



P. indiens Roxb. 



P. pusillus L. with some varieties. 



The Japanese collection ofthe Père Urbain Faurie consists of the fol- 

 lowing species and varieties quoted under his numbers. 

 P. javanicus Haskl. 



Rivière de Azuma. 13 juillet 1893. N. 10374. 

 Rivière de Azuma. N. 10372 '^^s. 

 Étangs et fossés d'Akita. (5-7 septembre 1894. N. 13778. 

 Lac d'Abashiri. 20 Août 18931* N. 8586. name not quite certain. 

 P. pusillus L. var. 



Marais de Némuro. 12 juillet 1890. N. 5595. 

 Rivière de Azuma. 13 juillet 1893. N. 10372. 

 Marais de Jomukomai. 12 juillet 1893. N. 10333. 



