MEMOIRS OF THE NEW YORK BOTANICAL GARDEN. 97 



the food Stored in the endosperm, during the period of 15 months in 

 which it had lived saprophytically on the stored food in the fruit. 

 During my absence in the summer of 1901 all of the specimens 

 perished. In this as well as in other seedlings the power of ex- 

 tended existence by means of the food stored in the seed is seen. 



Coix Lachryma-Jobi L. 



Seeds of Coix placed in the soil in November, 1899, germinated 

 in the following March and at the end of April had attained a height 

 of 25 cm., showing one basal leaf unfolded, and another still in the 

 rolled form. The internodes were about 5 cm. long with sheathing 

 petioles of the same length. The blades had a length of 8-10 cm., 

 and were a centimeter wide at the greatest extension. 



Normal control examples were 15 cm. in height and the sheathing 

 bases of the leaves about 3.5 cm. in length. The blades were 1.2 cm. 

 wide and 8 cm. long. The lowest internode was about 5 cm. in 

 length, and the one above it i cm. It is thus to be seen that the 

 stems are excessively elongated and the leaves also, the latter being 

 but little narrower than the normal. 



Colocasia sp. 



Corms of a cultivated Colocasia were placed in the dark room, 

 in February, 1900, and developed leaves with petioles a meter or 

 more in length, with the laminae only partly unrolled and held in a 

 horizontal position, after the usual habit of the caladiums. The lami- 

 nae attained a length of 10-20 cm. Second and third leaves were 

 produced in quick succession and then the corms were allowed to go 

 into a condition of rest through the summer. Upon the application 

 of water to the cultures in September, 1900, the fonnation of leaves 

 recommenced. The slight exposures to light in the examinations 

 with a paraffine candle were sufficient to induce the construction of 

 chlorophyl, in this as well as in caladiums and cultivated callas. 

 (See page 86.) The leaves were found to be proheliotropic to such 

 feeble illuminations, and apogeotropic. Guttation was very marked, 

 the exudations issuing from the apices, margins and injured portions 

 of the leaves. 



Cornus alternifolia L. f. 



Vigorous shrubs of Cormis 3 meters in height were taken from 

 the soil about December i, 1901, and after a period in a cool cham- 



