74 . SEEDS A^ifD PLANTS IMPORTED. 



52776 to 52784— Continued. 



52779. LiNUM NERVOSUM Waldst. and Kit. 



A perennial herb with erect simple stems, branching at the apex. 

 The sessile erect leaves are lanceolate and the large blue flovrers are in 

 panicles. Native to grassy forests near Pancsova, Hungary. (Adapte<l 

 from Waldstein, Descriptiones et Icones Plantarum Rariorum Hunnariae, 

 vol. 2, p. 109.) 



52780. LiNUM PALLKSCENS Bunge. 



An erect, glabrous, pale glaucous perennial with linear, erect-spread- 

 ing thickish leaves and pale-blue or white flowers. Native to Siberia. 

 (Adapted from Ledehour, Flora Altaica, vol. 1, p. 4S8.) 



52781 and 52782. Linum usitatissimum L. 



52781. Received as Linum monadelphum, which is now generally 

 referred to L. usitatissimum. 



For previous introduction, see S. P. I. No. 50160. 



52782. A form of the ordinary species of flax. Introduced for ex- 

 perimental work in cereal investigations. 



For previous introduction, see S. P. I. No. 50160, 



52783. Linum sp. 



Received as Linum floccosum, for which name a place of publica- 

 tion has not been found. 



52784. Linum sp. 



Received as Linum regale, for which name a place of publication has 

 not been found. 



52785 and 52786. Cyamopsis tetragon olob a (L.) Taub. Fabaceae. 



(C. psoraloides DC.) Guar. 



From Nagpur, Central Provinces, India, Seeds presented b.v D. Clous- 

 ton, Director of Agriculture, Central Provinces. Received March 25, 

 1921. Quoted notes by Mr. Clouston. 



" Two varieties generally cultivated about Nagpur." 



52785. " Deshi ffuar-phali." 52786. " Telia ffuar-phali." 



52787. Persea schiedeana Nees, Lauraceae. Coyo. 



From San Jose, Costa Rica. Seeds presented by Mrs. Amparo Zeled6n, 

 through A, Alfaro, director, Museo Nacional. Received March 25, 1921. 



This plant, known as yas in Costa Rica and coyo in Guatemala, is found 

 from southern Mexico to Panama. In Costa Rica it grows abundantly on the 

 slopes of Irazu at altitudes between 4,000 and 6,000 feet. Its fruits greatly 

 resemble avocados in character. 



Up to the present the coyo has not shown much promise in Florida or Cali- 

 fornia. It is somewhat slow of growth and probably will not bear until the 

 trees are at least 8 or 10 years old. Efforts are being made to obtain the best 

 seedling varieties from Guatemala and to propagate them by grafting. In this 

 way it will probably be possible to encourage early fruiting and to have fruit 

 of better quality than would be obtained from most seedlings. 



Extended data concerning this species and its cultural requirements will be 

 found in United States Department of Agriculture Bulletin No. 743, "The 

 Avocado in Guatemala." 



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