﻿14 SEEDS AND PLANTS IMPORTED. 



46978. Pyrus serotina Rehder. Malacese. Pear. 



From Japan. Presented by the Arnold Arboretum, Jamaica Plain, Mass. 

 Received February 7, 1919. 



" Wilson No. 11162." 



" This species seems to be most closely related to Pyrus bretschneideri 

 Rehder, which is easily distinguished by the leaves being broadly cuneate at 

 the base, by the smaller flowers, and by the yellow color of the fruit. Its 

 leaves resemble closely those of P. ovoidea Rehder, so that it seems impossible 

 to distinguish these two species with certainty without flowers or fruits; in 

 fruit, however, the persistent calyx* of the ovate yellow fruit of P. ovoidea 

 presents a good character, and the flowers of P. ovoidea may be distinguished 

 by the styles being pubescent at the base. This species was introduced by 

 E. H. Wilson in 1909. This pear and probably other brown-fruited species are 

 called by the Chinese tang-li" (Proceedings of the American Academy of Arts 

 and Sciences, vol. 50, No. 10.) 



For previous introduction, see S. P. I. No. 46702. 



46979. Pyrus kawakamii Hayata. Malacese. Pear. 



From Formosa. Presented by the Arnold Arboretum, Jamaica Plain, 

 Mass. Received January 20, 1919. 

 (Wilson No. 10876.) 



" This pear is a native of the island of Formosa and resembles Pyrus lind- 

 leyi, from which it differs in having the leaves acute at both ends. The punc- 

 tate, reddish fruits are globose and about one-third of an inch in diameter. 

 (Adapted from Journal of the College of Science of the Imperial University, 

 Tokyo, vol. 30, p. 99.) 



46980. Taiwania cryptomerioides Hayata. Pinaceee. 



From Formosa. Presented by the Arnold Arboretum, Jamaica Plain, 

 Mass. Received February 7, 1919. 



(Wilson No. 10853.) 



" The loftiest tree [in the forests of Formosa] is the Taiwania, which rears 

 its small moplike crown well above all its neighbors. The average height of 

 this tree is from 150 to 180 feet, but specimens exceeding 200 feet are known. 

 The trunk is sometimes as much as 30 feet in girth, quite straight and bare of 

 branches for 100 to 150 feet. It is a strikingly distinct tree, singularly like an 

 old Cryptomeria, and both trees suggest gigantic Lycopods. In the dense for- 

 ests the crown is small, dome shaped or flattened, the branches few and short, 

 and one wonders how so little leafage can support so large a tree. When the 

 top is broken by storms, the lateral branches assume an erect position. In the 

 more open forest the branches are massive and wide spreading, the crown 

 oval or flattened, and on small trees the branchlets are often pendent. The 

 Taiwania sheds its smaller inner branches as do Cryptomeria, Cunninghamia, 

 and Sequoia." (Journal of the Arnold Arboretum, vol. 2, p. 35.) 



46981. Tigridia pavonia (L. f.) Ker. Iridacese. Tiger flower. 



From Coyacan, Mexico. Bulbs and seeds presented by Mrs. Zelia Nut- 

 tall, through Wilson Popenoe. Received January 23 and 27, 1919. 

 " Cacomite. Among the plants used as food by the ancient Mexicans, the 

 cacomite is one which has received comparatively little attention in modern 

 times. 



