OCTOBER 1 TO DECEMBER 31, 1920. 



47 



61770. DiALiuM LAURiNUM Baker. Csesalpiniacese. 



From Bangkok, Siam. Seeds collected by J. F. Rock, Agricultural Ex- 

 plorer of the United States Department of Agriculture. Received Decem- 

 ber 3, 1920. 



'* No. 27. A leguminous tree, with edible fruits, native to Malaya." (Rock.), 

 An erect, unarmed tree, native to Malakka, with oblong, rigidly coriaceous 

 leaflets, 4 to 5 inches long, glossy above. The copious, obscure flowers are in- 

 ample terminal and axillary panicles. The black 1-seeded pod is fragile^ 

 roundish, 1 inch deep, and thinly coated with grayish brown down. The seed 

 is as large as a bean. (Adapted from Hooker, Flora of British India, vol. 2, 

 p. 269.) 



51771. Mangifera indica L. Anacardiacese. Mango. 

 From Buitenzorg, Java. Seeds presented by Dr. J. C. Koningsberger, 

 director. Botanic Garden. Received October 15, 1920. 

 "A mango grown near Surabaya, Java, which has fruits more than 12 inches 

 long, of good quality." {David Fairchild.) 



51772 to 51777. 



From Bangkok, Siam. Seeds collected by J. F. Rock, Agricultural Explorer 

 of the United States Department of Agriculture. Received December 3, 

 1920. Quoted notes by Mr. Rock. 



51772. Flacotjrtia kukam ZoU. and Mor. Flacourtiacese. 



" No. 30. A handsome tree with small edible berries which make a fine 

 preserve. Native to Malaya." 



An unarmed tree with pubescent young branches, glabrous coriaceous 

 leaves 3 to 5 inches long and 1^ to 2 inches wide, and 4-flowered umbels. 

 The tree is much cultivated for its fruits, the size of a large cherry. 

 (Adapted from Hooker, Flora of British India, vol. 1, p. 192.) 



51773. Hydnocabpus anthelminthica Pierre. Flacourtiacese. 

 "No. 31. The Siamese chaulmoogra tree." 



A vigorous tree, 10 to 20 meters high, with graceful furrowed branches ; 

 entire, coriaceous leaves, 10 to 30 centimeters long, pale yellowish above, 

 shining below ; and two to three, few-flowered, unilateral racemes of rose- 

 colored or purple flowers. The fruit is large, round, 8 centimeters in 

 diameter, and contains about 80 grayish, nearly ovate seeds. The seeds 

 and the oil expressed from them have been used by the Chinese for three 

 centuries for skin diseases. The tree is called false chaulmoogra by 

 European pharmacists. (Adapted from Bulletin, 8oci^t6 Botanique de 

 France, vol. 55, p. 523.) 



For previous introduction, see S. P. I. No. 48228. 



51774. Mangifera odorata Griffith. Anacardiaceie. 



" No. 32. A large tree with edible green fruits larger than the ordinary 

 mangos, with a very strong odor. Sold on the market in Singapore." 



*' This interesting relative of the cultivated mango is indigenous to the 

 island of Malakka, the home of most of the species of Mangifera. At 

 Singapore it is called kuwini. The name humhum appears to be applied to 

 it in Java. It is a tall tree, said to attain a height of 80 to 100 feet, the 

 trunk and crown resembling those of M. indica. It is glabrous throughout 

 or very obscurely pubescent on the panicle ; the leaves are 6 to 12 inches 

 long and 2 to 4 inches broad. The odorous flesh-colored flowers are one- 

 fourth of an inch broad; the petals three times as long as the reflexed 

 greenish sepals, which are suffused with blood red. The fruit is oblong, 

 yellow-green, spotted with yellow, offensive in odor, but with yellow 

 fibrous pulp of sweet flavor and lacking any taste of turpentine, which 

 is so frequent in inferior forms of M. indica. The stone is compressed and 

 fibrous. While perhaps of not great value for its fruit, this species pos- 

 sesses considerable interest as a possible stock for the mango and for 

 breeding experiments. In the region where it is found the fruit is said 

 to be eaten by the natives, but not by Europeans." (Popenoe.) 



