29 



2950. Psidium. G-uava. 



From Colombia, South America. Donated by Mrs. L. N. Webb, Takoma Park, 

 Washington, D. C, through Mr. H. J. Webber; received March, 1899. 



2951. Psidium. G-uava. 



From Colombia, South America. Donated by Mrs. L. N. Webb, Takoma Park, 

 Washington, D. C, through Mr. H. J. Webber; received March, 1899. 



2952. Psidium. G-uava. 



From Colombia, South America. Donated by Mrs. L. N. Webb, Takoma Park, 

 Washington, D. C, through Mr. H. J. Webber; received March, 1899. 



2953. Triticum durum. Wheat. 

 From Russia. Received March, 1899, through Mr. M. A. Carleton. 



Kubanka Spring wheat. From the Turghai territory in the Kirghiz Steppes, 40 

 miles southeast of Orenburg. Grown by Mr. Gnyezdilof. Average rainfall for the 

 year, about 15 inches or a little less; for the growing season (May to September, 

 inclusive), about 8 inches. The last season was an unusually dry one. Summer 

 short but very hot. Soil much grayer than the usual black earth, with a greater 

 mixture of clay, and also considerable sand. The common custom is to plow the 

 ground the preceding autumn, and then stir the surface again before sowing in the 

 spring. Period of growth in this region about 100 days. Mean time of "harvest, 

 August 10 to 12. The wheat is a durum, extremely hard, and of excellent quality. 

 The best bread wheat in the Yolga-Ural region, but may be received complainingly 

 by our millers; 10 to 25 per cent of a softer red wheat, however, is mixed with it in 

 grinding. It is very drought resistant, and considerably resistant to orange-leaf 

 rust. Suitable for trial in this country in extreme western Nebraska, Kansas, the 

 Dakotas, east Colorado, Texas Panhandle, and perhaps the Columbia plains and 

 New Mexico. This variety might be transformed into a winter sort in warm lati- 

 tudes. Amount obtained, 6 bushels. 



Reprinted from Inventory No. 4. See Carleton, Bull. 23, Div. Bot. : 14. 



2954. Triticum durum. Wheat. 



From Russia. Received March, 1899, through Mr. M. A. Carleton. 



Pererodka Spring wheat. From Orsk district, Orenburg government, Average 

 annual rainfall of the region, about 15 inches; for the growing season (May to Sep- 

 tember, inclusive), about 8 inches. The last season was an unusually dry one. 

 Mean annual temperature, 37.9°. Soil, the usual "black earth" of east Russia, 

 though perhaps not so dark as in the Samara government; similar to western Nebraska 

 or eastern Colorado soil. Should be sown early. Period of growth about 100 days. 

 Harvest time, August 10 to 12. Sown in soil plowed the previous autumn. It is a 

 wheat allied to the Kubanka, and said to be originally identical, but it is a little 

 darker and perhaps softer, and has become changed by transference to darker, 

 richer soils. A hard wheat, making good bread, but hardly so good as Kubanka. 

 It is a very drought-resistant variety. In this country it may well be tried in the 

 Dakotas, Minnesota, Nebraska, Kansas, and perhaps Oklahoma, eastern Colorado, 

 Texas, and Columbia plains. Amount obtained, 6 bushels. 



Reprinted from Inventory No. 4. See Carleton, Bull. 23, Div. Bot. : 16. 



2955. Triticum yulgare. Wheat. 



From Russia. Received March, 1899, through Mr. M. A. Carleton. 

 Russian Spring wheat. From the Kirghiz Steppes, in the vicinity of Orenburg. 

 Mean annual rainfall of the region, about 15 inches; for the growing season (May to 

 September, inclusive), about 8 inches. Summers short but very hot, Soil, the rich 

 "black earth" of the Russian plains, but probably not so dark as in Samara govern- 

 ment; much like west Dakota soils. Wheat should be sown early. Period of growth 

 about 100 days. Mean harvest time, August 10 to 12. Sown in soil that was plowed 

 the previous autumn. Rather a small-grained, hard, or semihard red wheat. 

 Makes a very good bread itself, but is also used to mix with Kubanka by millers 



