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APEIL 1 TO JUNE 30, 1910. 81 



28306 to 28324— Continued. 



28319. Glycyrrhiza glandulifera Waldst. & Kit. Wild licorice. 



"(No. 293.) A native forage plant from the dry steppe region of Orenburg. 

 Seed gathered for me in 1908, from wild plants, by courtesy of Mr. W. S. 

 Bogdan, agronomist of the Turgai-Ural region, Orenburg Province on the 

 extreme eastern border of European Russia. A relative of the cultivated 

 licorice plant." 



Distribution. — Southwestern Europe and southern Asia, extending from 

 Greece through Persia, Turkestan, and Afghanistan to the province of Chihli 

 in China. 



28320. Avena sativa L. Oat. 

 "(No. 294.) Seed obtained originally from Nizhni Novgorod Exposition; 



sample grown in Kherson Province, southern Russia. The present sample is 

 from seed raised for ten years by Professor Williams, of the Imperial Agricultural 

 College, Moscow, Russia; the first five years as a field crop and the second five 

 in the plant breeding plats. Noted for extreme earlines3. At first the grain 

 was very small, but is now larger and considerably later." 



28321. Salsola arbuscula Pallas. 



" (No. 295.) A native plant of arborescent growth, from the sand dunes of the 

 Bokhara, gathered for me by courtesy of Mr. W. Paletsky, in charge of the sand- 

 dune planting of the Trans-Caspian Railroad, with headquarters at Chardchui, 

 Turkestan. This plant is used as a sand binder to prevent the moving sands 

 from encroaching on the track. These experiments show great originality and 

 demonstrate the superiority of the native plants of Turkestan for this purpose. 

 The onward march of the moving sands has been checked. Formerly these 

 caused great expense in railway management." 



28322. Haloxylon ammodendron (Mey.) Bunge. 



"(No. 296.) A native sand binder from Bokhara. Same source as No. 295 

 (S. P. I. No. 28321)." 



28323. Calligonum caput-medusae Schrenk. 



"(No. 297.) A native sand binder from Bokhara. Same source as No. 295 

 (S. P. I. No. 28321)." 



28324. Trifolium pannonicum Jacq. 



"(No. 113.) This is usually called Hungarian clover, a perennial allied to 

 red clover, but earlier and less tender in foliage. This present sample deserves 

 especial attention because it is as found wild in the Kharkof Province, southern 

 Russia. It should prove hardier than the Hungarian form of the species." 



73528°— Bui. 208—11 6 



