JANUARY 1 TO MARCH 31, 1924 



29 



58866 to 58898— Continued. 



&8897. Soja max (L.) Piper (Glycine hispida 

 Maxim.) . Fabaceae. Soybean. 



An unknown variety from wbicb desirable 

 strains may be obtained. 



58398. Stipa" sp. Poaceae. Grass. 



Received as Stipa papposa, but does not agree 

 with material in the National Herbarium. 



58899. Landolphia kirkii delagoen- 

 sis Dewevre. Apocynacese. 



From Pretoria, Union of South Africa. Seeds 

 presented by I. B. Pole Evans, chief, division 

 of botany. Received March 12, 1924. 



This vine appears to be confined more or less to 

 the Delagoa Bay region, and probably resembles 

 very closely the species Landolphia kirkii, whose 

 distribution extends as far north as Abyssinia and 

 as far south as Zululand. Landolphia kirkii, which 

 is regarded as the most important rubber vine in 

 East Africa, being the source of "Zanzibar rubber," 

 assumes a low-growing habit in dry regions, whereas 

 under a heavy rainfall this same species may attain 

 a height of 100 feet or more, with a stem measuring 

 up to 10 or 12 inches in diameter. 



If the quantity and quality of the rubber in the 

 variety delagoensis is equal to that of the species, a 

 valuable addition will have been made to the col- 

 lection of rubber plants now being brought together 

 for investigational purposes in southern Florida. 

 (Alfred Keys, Bureau of Plant Industry.) 



58900. Euphorbia fulva Stapf. Eu- 

 phorbiaceae. 



Growing at the Chapman Field Garden, Coconut 

 Grove, Fla., Under P. I. G. No. 555. Numbered 

 March, 1924. 



Introduced for trial as a source of rubber. 



The "Palo amarillo," as this tree is called in 

 southwestern Mexico, produces latex which con- 

 sists of a mixture of rubber and resin, and its value 

 as a source of rubber appears to depend on the 

 working out of a practical method for separating 

 the resin from the rubber. This has already been 

 done experimentally, both the rubber and resin 

 proving to be of good quality. 



The tree is about 30 feet high, with smooth, 

 yellow bark, and grows in rocky soil in southern 

 and western Mexico at altitudes of 5,000 to 6,000 

 feet. This information is based on an article 

 appearing in the Kew Bulletin of Miscellaneous 

 Information for 1907, page 294. 



58901 to 58930. 



From Darjiling, India. Seeds presented by G. H. 

 Cave, curator, Lloyd Botanic Garden. Received 

 March 21, 1924. 



58901 to 58903. Acer spp. Aceracese. Maple. 



58901. Acer campbellii Hook. f. and Thorns. 



The pleasing contrast of the bright-green 

 leaves and red stalks of this Himalayan maple 

 make it worthy of atrial as an ornamental shade 

 Iree for the warmer parts of the United States. 

 In its native country the grayish white, moder- 

 ately hard timber is used for cabinetwork and 

 for planking. 



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

 55669. 



58902. Acer hookeri Miqueh 



A handsome tree 40 to 50 feet high, with 

 deeply fissured brown bark, native to the 

 Sikkim Himalayas at altitudes of 8,000 to 

 10,000 feet. The oval leaves, though usually 



58901 to 58930— Continued. 



green, are sometimes copper colored. The 

 wood is gray with small pores and very numer- 

 ous, fine, red, medullary rays. 



For previous introduction, see 

 56454. 



58903. Acer laevigatum Wall. 



P. I. No. 



A Himalayan maple whose broad, low crown 

 suggests it for planting as a park tree in mild- 

 wintered regions of the United States. The 

 bark is yellowish or dark ash colored, and the 

 leaves are a pleasing green. The hard, close- 

 grained wood is shining white and is popular 

 in Nepal for building purposes. 



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

 50360. 



58904. Buddleia colvilei Hook. f. Loganiacese. 



With large, loose, terminal clusters of crimson 

 flowers and dark-green leaves, this Himalayan 

 relative of the well-known butterflybush has been 

 called by some authorities the handsomest of 

 the genus. It is a shrub or small tree, 30 to 40 

 feet high, and has proved hardy in some parts of 

 England and Scotland. 



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



55675. 



58905. Callicarpa rubella Lindl. Verbe- 

 naceae. 



The chief attraction of this small Chinese 

 shrub is its appearance in the fruiting stage, 

 with its dense cymes of small, purple berries. 

 The flat, yellowish green leaves, 4 to 5 inches 

 long, contrast pleasingly with the small, pink 

 flowers. 



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

 47651. 



58906. Enkianthus deflexus (Griffith) C. 

 Schneid. (E. himalaicus Hook. f. and Thorns.). 

 Ericaceae. 



The whorled branches of this Himalayan shrub 

 are characteristic of the entire genus and give the 

 plant a peculiar appearance. The margins and 

 petioles of the young leaves are red. The flowers, 

 produced in dense, drooping racemes, have 

 yellow corollas, striped dark red with darker 

 lobes. 



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

 49634. 



58907. Erythrina arborescens Roxb. Faba- 

 ceae. 



When covered with its bright-scarlet flowers 

 this small tree is very attractive and is often 

 planted as an ornamental in the streets of Dar- 

 jiling. There are but few prickles on its branches, 

 and the thin, greenish leaves are often a foot in 

 width. The strongly curved pods are about an 

 inch wide and 6 to 9 inches long. The tree is 

 found native in the central and eastern Hima- 

 layas at altitudes ranging up to 7,000 feet. 



For previous introduction, see S. P. I. No. 55680. 



58908 to 58910. Michelia spp. Magnoliaceae. 



Michelia cathcartii Hook. f. and 

 Thorns. 



A lofty tree with magnolialike foliage and 

 terminal white flowers about an inch in diam- 

 eter. It is native in the temperate forests of 

 the Sikkim Himalayas, where the moderately 

 hard, dark-brown heartwood is used for plank- 

 ing and for making tea boxes. 



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

 55689. 



