( 68i ) 



§§§ 3. M cans of d i s t r i h u t i o ii. Tlie dissemination of this 

 species very prohaldy also lakes place through the agency of birds, 

 which eat the drupaceous stonefruits. Further data about the means 

 of distribution of this rare species are wanting. The fruits resemble 

 those of Mi/rica jaranlca Bl., so closely however, that in any case 

 I cannot consider the limited vertical and horizontal distribution of 

 Mj/rica loii<jlfoH<i T. di: B. as being due to difticidties of dissemination, 

 but feel obliged to attribute it to other oecological conditions. 



§ 2. On Oreiostachys, GAMBLE, a new genus of Gramineae-Bambuseae, 

 collected by Dr. A. PÜLLE in Java at an altitude of 1600 m. above sea-level 



When in 1907 I was engaged on the systematic and phyto- 

 geographical investigation of the Alpine flora of Java, and was 

 working in the herbarium of the Royal Botanical Museum at Dahlem 

 near Berhn ^), Prof. Dr. F. A. F. 0. Went was so kind as to make 

 me (he offer, very highlj^ appreciated by me, of giving me also for 

 invesligation a collection of Alpine plants, made in 1906 in Java by 

 Dr. A. PuLLE, and belonging to the Herbarium at Utrecht. In the 

 preliminary naming of this collection, which proved to have been 

 excellently collected, and preserved and labelled with great care, I 

 found a tine flowering specimen of a Bainbusea, the naming of 

 which presented exceptionally great difficulties, here and at Berlin 

 (/. a. by the absence of fruits, which are almost indispensable foi' 

 the determination of Bamhuseae). Thereupon I sent this herbarium 



1) Most grateful mention sliould here be made of the assistance given me by 

 Professor Dr. A. Engler, Director of the Royal Botanic Garden at Dahlem, near 

 Berlin, and by Dr. D. Pra[N, Director of the Royal Gardens, Kew, near London. 

 Prof. Dr. A. Engler was so kind as to lend me the plants, which he had perso- 

 nally collected in Java on his last "Forschungsreise", especially in the highest 

 mountain regions of Western Java, and also in the Tengger: this loan was not 

 limited to my stay at Dahlem-Bei'lin, but continued after my return to Leiden, 



Dr. Prain had the extreme courtesy to send me, for further study and in 

 response to my request, made in 1907, while I was in Berlin, all the duplicate 

 specimens of the Phanerogams, collected by me in 1899 on the Tengger moun- 

 tains of Eastern Java, and described by me in Natuurk. Tijdschr. v. N, I (Dl. 6U 

 p. 242-280 and 370-374, Dl. G2 p. 213-206), which specimens had been pre- 

 sented to the Royal Herbarium at Kew, by the Botanic Gardens of Buitenzorg; 

 Dr. Pbain also granted me the loan of these specimens for further study, while 

 I was in Holland. When it is remembered, that all these specimens had already 

 been incorporated in the herbarium according to their specific name, and were 

 scattered among hundreds of thousands of other specimens, at the time when I 

 made my request, it is evident, that this action implies extreme scientific liberality 

 and readiness to help on the part of the Director of the Royal Botanic Gardens, 

 and of the scientific staff of the Royal Herbarium at Kew. 

 These collections are still the subject of study. 



