69 



the resin duct of the xylern the characteristic green colour while the resin of 

 the phloem portion remains uncoloured, showing that the water ascends 

 throught the xylem only. 



Prof. M. Shirai read a paper, entitled tl On the Wart-disease of Pine." 

 The wart or lump is often found on the stem of Japanese pines (Finns 

 Thunbergii, P. densifiora, P. PentaphyUa and P. luchuensis, etc..) and 

 sometime on the exposed part of the root. The wart increases with the 

 ages, often reaching to 1-2 feet in diameter. The tissue of the wart is 

 brittle "becoming hollow when getting old, and the stem often breaks from 

 this part. This wart is formed by a parasitic fungi, Peridermium gigan- 

 teum, detailed account of which was given. The fungus changes its host 

 in going through the alternation of generation. At another stage it attacks 

 some Fagaceae such as Quercus glandidifera, Quercus variabilis, and 

 Quercus serrata. He sowed the spores from the pine-wart on the young 

 plants of the above mentioned species of Quercus. The spores germinated 

 and the infection was very apparent. 



Mr. T. Ito made a statement on " Some Great Botanists of the Present 

 Century." After saying few words about Sachs, de Bary, Alph. de Candoll 

 and A. Gray, he made more minute description on the character and work 

 of Sir. J. D. Hooker whom he is personally aqua in ted. He also said few 

 words on Bentham who published the well known Genera Plantarum with 

 Hooker. 



Prof. J. Matsumura delivered the result of his study un the " Leou- 

 minoceae of Formosa." Ninety seven species belonging to fourty six genera 

 were enumerated, . with some remarks on many interesting species : and 

 dried specimens of each were shown. Among them following three species 

 were described as new : 



Croialaria formosana, Matsumura (allied to C. cahjeina). 

 Mucuna (Zoophtlialum) ferruginea, Matsumura. 

 Galaciia formosana, Matsumura. 



Mr. N. Ono in his paper on the " Pure-culture of Some Lower Algae" 

 reviewed the literature of the subject up to the present date, and added 

 the results of his own studies. He is now in course of researches on the 

 stimulating action of the salts of various metallic elements such as Zinc, 

 Cobalt, Nickel, Copper, Mercury etc., upon the growth of some lower 

 algae. Knop's solution and Ehrenmeyer's flask are used. 

 He succeeded to make the pure-culture of Diatoms, Oscillaria, Nostoc, and 

 the lower algae parasitic in the thallus of some Hepaticere, on the gelatine, 

 using Petri's dish. 



