MEMOIRS OF THE NEW YORK BOTANICAL GARDEN. 6 1 



Proportion of water 75-65 per cent. 



" " dry matter 24.35 " 



u <■<- <■<■ " not including ash 24.29 " 



" " ash in fresh material .77 " 



u u u u (ii-ied " 3-^8 " 



II 

 Leaf and petiole of a green plant cultivated in greenhouse ; 



Weight of fresh material 5-441 grams. 



" " dried " -4^4 " 



a ii ash " -022 " 



Proportion of water in fresh material 91-105 per cent. 



" " dried matter 8-995 " " 



*« " ash in fresh material .404 " " 



u a u a dried " 4-54 " " 



Corm of Above Plant 



Weight of corm 4-243 grams. 



" " dried material -532 



u a ash -013 " 



Proportion of water in fresh material 89.84 per cent. 



*' " dried matter in fresh corm 10.16 " " 



" " ash in fresh material .306 " " 



ii u u u jried " 2.44 " " 



III 

 Etiolated specimens which had been cultivated one year in green- 

 house and then forced in dark chamber ; 



Weight of leaves including petiole and laminae 9.8 11 grams. 



" *' dried material -"^7 



" " ash -^51 



Proportion of water in fresh material 93.00 per cent. 



" " dried matter 7-°° 



t' " ash in fresh material -5^9 



« '* " " dried " 7-43 " " 

 Weight of half of corm of above plant taken 



when leaves reached maturity 22.00 grams. 



Weight of dried material 3-850 



u u ash -063 " 



Proportion of water in fresh material 82.50 per cent. 



*' " dried matter 17-5° 



" " ash in fresh material -286 



n u a 4» dried " 1-^33 



