﻿OCTOBER 1 TO DECEMBER 31, 1918. 21 



tropical Mexico, is of a peculiar shape ; oblong, pentagonal, five celled, contain- 

 ing a milky pulp. It is somewhat sweet and edible, in many places being pre- 

 pared with sugar in the form of conserves. The leaves are compound and 

 digitate, composed of seven distinct acute lobes." ( W. E. Safford.) 



46697. Livistona jenkinsiana Griffith. Phcenicacere. Palm. 



From Buitenzorg, Java. Presented by the director of the Botan'c Garden. 

 Received October 25, 1918. 

 Seeds of an East Indian palm, 20 to 30 feet tall, with a thick, round crown. 

 The leaves are used for covering tops of boats and umbrellas. 

 For previous introduction and description, see S. P. I. No. 45591. 



46698 to 46703. 



From Jamaica Plain, Mass. Seeds collected at the Arnold Arboretum by 

 Dr. Walter Van Fleet, of the Bureau of Plant Industry. Received Octo- 

 ber 28, 1918. Quoted notes by Dr. Van Fleet, except as otherwise stated. 

 46698. X Malus aknoldiana Rehder. Malacese. Apple. 



" Hybrid of Malus pulcherrima, grown at the Arnold Arboretum ; vig- 

 orous and very fruitful. May be useful as a stock for dwarfing commer- 

 cial varieties of apples and for variety breeding." 



Attention has been called to the hybrid crab apple, Malus cerasifera. 

 This plant is probably one of the parents of another hybrid which sprang 

 up spontaneously in the Arboretum many years ago and has been called 

 M. amoldiana. The other parent is probably M. floribunda" [M. pulcher- 

 rima'], itself believed to be a hybrid which originated in China. If this 

 view of the origin of M. amoldiana is correct, it is the offspring of two 

 hybrids of different parentage and is a good illustration of what can 

 be obtained by crossing and recrossing the crab apples. It is a iow, 

 broad, bushy tree with long, arching upper branches which are raised 

 well above the general head of the plant and are wonderful objects 

 when clothed from end to end with flowers and the blue sky is seen 

 between. The flower buds, like those of M. floribunda, are of deep rose 

 color and the petals, after the flowers open, gradually turn from rose 

 color to white. The flowers, however, are as large as those of M. cerasi- 

 fera, or nearly twice as large as those of M. floribunda, and the red fruits 

 are intermediate in size between those of the parents. (Adapted from 

 Arnold Arboretum Bulletin of Popular Information, May 16, 1918.) 

 46699 and 46700. Maltt S prunifolia kinki (Koidz.) Rehder. Malacese. 



Apple. 



46699. " Fruits from the best trees of this variety in the Arboretum. 

 Fruits are of quite large size and good quality. Tree healthy and 

 vigorous. For breeding and stock trials." 



46700. " Handsome variety formerly considered a form of the Si- 

 berian crab, M. baccata, but considered by Prof. Sargent as being 

 much nearer to M. prunifolia rinld. Good-sized fruits of fine qual- 

 ity. For breeding and stock trials." 



46701. Malus teansitoria toringoides Rehder. Malacese. Apple. 



"A large and vigorous variety of M. transitoria, with good-sized astrin- 

 gent fruits. For breeding purposes." 



