BOTANY AND ZOOLOGY OF CHINA 87 



colourless cover. The grains are of 5-5.2 m.m. in length 

 .and 2.2-2.5 m.m. in breadth, almost transparent and hard 

 -with a small farinaceous kernel. 



9. — The unbearded white water rice, cultivated as 

 mountain rice. This variety has the same appearance as the 

 previous form. 



10. — The large-scaled white water rice. (Oryza sativa L. 

 var. grandiglumis Doll). (See PL III, Fig. 9). 



A variety of rice found among the grains of the red 

 bearded white water rice cultivated in Manchuria as moun- 

 tain rice. Its hulls are yellow of 7 m.m. in length and 

 3.5 m.m. in breadth. The scales are of 4.5 m.m. in length. 



EXPLANATION OF THE PLATES. 



Plate I. 



Fig. 1. The narrow ridges or beds for rice culture. 

 ,, 2-3. Two kinds of beds used for mountain rice. 



Plate II. 



The mountain rice plant. 



Plate III. 



[Editor's note. — Unfortunately Plate III has gone astray; same will be 

 circulated on recovery] 



Fig. 1. The white bearded red mountain rice. 



,, 2. The black bearded red mountain rice with light hulls. 



,. 3-4. The black bearded mountain rice with brown-red grains. 



,, 5. The red bearded white water rice cultivated as the mountain 



rice. 



,, 6. The unbearded red mountain rice with broad grains. 



,, 7. The unbearded red mountain rice with narrow grains. 



,, 8. The unbearded white mountain rice. 



,, 9. The large-scaled white water rice. 



XLI. — The Apricots Grown in Harbin. 



Harbin is the northern limit of apricot growing in 

 Manchuria. The bulk of apricot trees seen at Harbin belong 

 to the common apricot class (Prunus armeniaca L.) and 

 some to Prunus manshurica Kockne while others are 

 hybrids between (P. armeniaca and P. manshurica) these two 

 species. 



The common apricots are grown here with success, but 

 only in spots protected from the north winds. In spring the 

 bark of the apricot trees suffers from the sun's rays; in 

 summer before ripening frequent rains cause the fruits to 

 -drop prematurely, while the drought makes them shrivel. 

 The greatest damage is sometimes brought about by late 

 frosts during the end of April. These frosts affect the 

 blossoms. 



