46 SEEDS AND PLANTS IMPORTED. 



40560. Swietenia mahagon] Jacq. Meliaceae. Mahogany. 



From Elliotts Key, Fla. Presented by Dr. John Gifford, Cocoanut Grove. 

 Fla. Received April L9, L915. 

 "Seeds from a tree on Elliotts Key. I thoughl it of special interest, because 

 it is the ^et\ of the true mahogany from :i native tree ol Florida. Just now the 

 seed is scarce, but at times a wagonload of the capsules could be obtained, since 

 the tree is unite common on the keys and lower mainland of this State. It is 

 called Madeira here, and many persist in the foolish belief that it is not the 

 true mahogany of commerce." (Gifford.) 



See S. P. I. Nos. L0409, 346GS, and 36170 for previous introductions and de- 

 script ion. 



40561 to 40600. 



From Elstree, Herts. England. Presented by Mr. Vicary Gibbs. Aldenham 

 House Gardens. Plants received April 22. 1915. 



40561. (Undetermined.) Received as Viburnum acerlfoHum, but ap- 

 parently it is not a Viburnum. 

 40562 and 40563. Bkkbekis spp. Berberidaceae. Barberry. 



40562. P.ERBEKIS BRACHYPODA MaXlIll. 



"A scarlet-fruited western Chinese bush up to 2 meters in height. 

 Inflorescence sometimes somewhat paniculate near the base. Fruits 

 elliptic, up to 11 mm. long and 6 mm. across, with a sessile stigma." 

 (Sargent, I'lantae Wilsonianae, vol. 1, p. 375.) 



40563. Bkkbekis sibcaulialata G. K. Schneider. 



"This species belongs to the same group as B. stapfiana ( S. P. I. 

 Nos. 37975 and 40150), but it has globose fruits ripe in November, 

 more distinctly angled branchlets, and larger leaves: the genera! 

 aspect is otherwise very similar." (IT. /. Bean, Trees and Shrubs 

 Hardy hi the British l.sh.s, rat. 1, /). ."/9.) 

 40564 and 40565. Petti. a spp. Betulace.-e. Birch. 



40564. Betula .taponica mandshubica (Regel) Winkler. 



- Wilson No. 4088. A gray-barked tree 10 to 2.1 meters tall, in 

 girth 1.5 to 2.4 meters, from Chetoshan, west of Tachienlu. western 

 Szechwan. at altitudes of 2,S00 to 3,700 meters, September, 1910." 

 {Sargent, Plantae Wilsonianae, vol. .'. /». )61.) 



40565. Betula occidentalis Hooker. 



'•There is a good deal of confusion in regard to this tree, and it 

 has heen called /;. occidentalis (Sargent); />. papyrifera var. h/al- 

 liana (Koehne) ; and fi. papyracea var. occidentalis (Dippel). The 



name occidentalis was founded by the elder Hooker in 1S39 on 



specimens of three distinct birches. As it might with equal pro 

 priety be given to any one of them, it is better to drop it altogether. 

 B. lyallitiita is one of the very finest of birches and reaches some- 

 times 12»i feet in heigh!: bark reddish brown to whitish, peeling. 

 Young shoots warted, downy, yellowish brown. Leaves ovate with 

 a rounded or heart-shaped base, ordinarily 3 to 4 inches long, but on 

 young trees often over 5 inches long: hairy along the midrib and 

 veins beneath; veins in 7 to 10 pairs. The tree is no doubt closely 

 allied to the paper birch, but Sargent, who regards it as specifically 

 distinct, distinguishes it by its downy fruiting scales, its brown 



