112 



af these, which take in the full range of altitudinal varia- 

 number of species has been raised from 67 in Rolfe's list 

 1st 134. Professor Underwood in 1903 provisionally 

 I the ferns then known at 633. The figures for mono- 



be increased, if at all, less than the others, so that the 



found misleading. 



are now in the Garden herbarium between 10,000 and 

 beets of Philippine flowering plants and ferns. Among 

 200 collected by Cuming, 60 by Loher, and 40 by the 

 :xploring Expedition. Nearly all of value in the rest was 

 obtained by Mr. Williams or sent by the Bureaus of Gov- 

 iratories and Forestry at Manila. 



C. B. Robinson. 



A FLOATING ORCHID (HABENARIA REPENS). 



Many species of Habenaria are found in damp locations, and a 

 number actually grow in water, but so far as known to the writer 

 this is the first record of one growing in a floating position. 



In the delta of the Orinoco there occur many lakes or pools, 

 connected with the river by channels in which the water flows 

 only when changes of level occur in the main stream. During 

 the rainy reason the water flows into them from the river, and 

 they acquire a much greater depth than in the dry season, when, 

 in fact, many of them dry up altogether. These pools offer rich 

 harvests to the collector of aquatics. In some of them the plants 

 are all rooted in the mud, while in others, where there is little 

 current or other violent disturbance attendant upon the change 

 in level, much floating vegetation is found. One of these still 

 pools existed at the back of a hill facing the river, upon which 

 was built the one house that now constitutes Sacupana. where 

 Mr. Squires and myself spent part of the collecting season of 

 1 896. The shores of this pool were often visited by us, but no 

 favorable opportunity occurred for exploring its surface until one 

 day in May, shortly before our departure. On this afternoon we 



