391 



"Race Xo. 66 from the T']iili])piiio islands, differod a little from 

 the majority of the yams of tlie short l)raiiclu'(l type in the leno:th 

 of the fiiioers. The tiil)ers have white flesh which soon turns 

 oraiio-e-hrown hy oxidation when exjjosed to the air, — a character 

 which has I)een thought suggestive of inferiority, hut the surface of 

 the tidier is free from rootlets like the hest of the yams. Its 

 average yield was 7 Ihs. 3 oz. (3232 grammes) at which rate the 

 yield per acre would he Just over 7 tons 3 cwt. 



"Race Xo. 174 from Saigon under the name of Khoai tiem, 

 produces rather elongated tuhers, the flesh flecked with magenta 

 sap, and magenta sap in a layer under the skin. The surface 

 carries many rootlets. The average return was 4 Ihs. 10 oz. (2098 

 grammes) or at the rate of nearly 4 tons 13 cwt. per acre. 



The yams grown under the three numhers 90, 92 and 94, 

 originating in the island of C!uam, on examination appeared to be 

 hut one rnce, and will he treated as such in future, under the first 

 number. Tlicir average return was 11 llis. 7 oz. (54<S8 grammes) 

 or at a rate of nearly 11 tons 9 cwt. per acre. The flesh is white 

 with magenta sap under tlie skin : and there ii* a marked tendency 

 to flattening. 



TJace Xo. 100 from Saigon under the name of Khoai noc-trang. 

 produces tubers which are excessively flattened. The flesh is white 

 with just a little magenta sap in it both deep and under the skin. 

 The average return was 11 lbs. 2 oz. (r)046 grammes) or at the 

 rate of 11 tons 3^ cwt. per acre. 



At the liottom of plate 4 is figured yam Xo. 89, which is more 

 lobular tlian fingered ; and is very much flattened. Its origin was 

 in the Pliiliii])ine islands, and it appears to have an exact counter- 

 ])art in another Philippine yam, Xo. 80. Both have much magenta 

 sap in iheir tissues. The lirst named gave a return of 5 lbs. 14 oz. 

 (2665 grammes) per plant and the second of 5 lbs. (2258 grammes) 

 which per acre would l)e respectively 5 tons 18 cwt. and just under 



5 tons \ cwt. 



T?f.ce Xo. 140 from Fiji, was similarly lobular but not flatten- 

 ed. Its flesli is white, turning brown rapidlv on exposure to the 

 air; and magenta sap is entirely absent. The average return was 



6 Ihs. 6 oz. (2892 grammes) or at a rate of 6 tons 8 cwt. per acre. 



Race Xo. 168 from tlie Khasia Hills of Assam, while .suggest- 

 ing Xo. 88 in its lol)ular tubers. ai)])roached the half-long yams 

 somewhat, and bore a numljer of u])rising fleshy shoots. Its average 

 yield was 4 ll)s. 15 oz. (1240 grammes), but perhaps as yet it has 

 not liad a fair trial. 



Race Xo. 50 from the Philippine islands gives flattened 

 branched tubers witli clean skins, and beautifully white flesh, wliich 

 does not qxidise to a yelU)w-hrown on exposure to the air. Its re- 

 turn was 13 ll)s. 9 oz. (6152 grammes) on the average, which per 

 acre would be almost 13 tons 12^ cwt, 



