344 THE ORCHID REVIEW. 



M. macrur? ; and a comparison of the two leads him to think that they are 

 forms of the same species. On searching the records, I find that M. macrura 

 was described by Reichenbach in 1877 (Linncea, xli, p. 28), from a plant 

 which flowered in the Hamburg Botanic Garden. It is described as a native 

 of Merida, where it was collected both by Moritz and Wagener. It is said 

 to belong to the group of M. lepidota and M. longissima, and to have the 

 sepals and petals brown, and very pellucid, and the lip yellowish white, with 

 a few red-purple longitudinal stripes. The two evidently belong to the 

 same species, and it is very satisfactory to be able to clear the matter up. 

 The same plant has since been obtained by a collector of Messrs. F. 

 Sander & Co., St. Albans, on the Sierra Nevada, at 8000 feet elevation 

 above sea level. 



R. A. Rolfe. 



CALENDAR OF OPERATIONS FOR NOVEMBER. 



By John Mackay, The Gardens, Highbury, Birmingham. 

 All departments will now require warmth from the hot water pipes, and 

 the aim must be to keep the temperatures as steady and regular as possible. 

 For the proper winter temperatures a few degrees lower than those 

 mentioned in last month's Calendar will suffice in very severe weather, 

 otherwise those previously stated should be adhered to. It may also be' 

 pointed out how great is the advantage derived from using the lath blinds 

 as a means of maintaining the proper degree of warmth without the 

 necessity of using so much fire-heat. Where this can be done the conditions 

 will be found more favourable to the plants, besides minimising the cost 



f fu-.-l. 



resting of Orchids.-A few words on this important item 1 



doubtless be found userui at tne present time. In the first place it is safe 

 to infer that all pseudobulbous Orchids require a rest at some period of 

 the year, in order to bring about the maturity in their growths, and also 

 that they may recuperate after flowering, so that they will thus be ready 

 for another growing season. To do this properly requires as careful con- 

 sideration and attention as does the growin gi period. Therefore when 

 rest is implied it does not mean that absolute drought should be resorted 

 to for long or short periods, but that the chief points to be remembered are 

 little or no water, a lowering of the temperature, less moisture in the 

 atmosphere, and last, but not least, more light where this can be obtained. 

 It is easy to g.ve either too much water or too little during the winter 

 months, birtvery difficult to say when or how often to water, for the 



conditions of the ^ 



rcumstances of each plant differ so much. 



The aim should be to give enough to keep the plant in plump condition 



