118 BOTANICAL NOTES, NOTICES, AND QUERIES. [_May, 



Annual Temperature. 



Hypericum perforatum, which has a horizontal range of 11°, or which 

 grows between 50° and 61°, and has a temperature ranging from 53° to 

 46°, remarkably differs from the following, viz. H. dubium. 



H. dubium, with a range of 7° (50° to 57°), flourishes in a temperature 

 ranging from 51° to 45°. 



H. montanum, with a range of only 5° (50° to 55°), is stated to grow in 

 a temperature ranging from 50° to 47°. 



The temperatures at the further or north end of the series aYe feasible 

 enough, viz. 61° latitude and 46° temp., 57° lat. and 57° temp., and 55° 

 lat. and 57° temp. 



But how is it that the temperature differs so widely at the southern 

 end of the horizontal range ? All the three above-mentioned plants gTow 

 in latitude 50°, yet there is two-degrees-difference between their respec- 

 tive temperatures. The temperatm'e of H . perforatum is 52°, of K. dubium 

 51°, and of H. montanum 50°. Querist. 



[Perhaps the learned author of the ' Cybele Britannica ' will condescend 

 to enlighten our correspondent.] 



Localities and Range of British Plants described in 

 'British Botany.' 



Some misapprehensions having arisen about the publication of single lo- 

 calities of certain rare species, the author wishes to state clearly that when 

 one or even two stations are entered where the said species have been ob- 

 served, it is by no means to be implied that they are confined to these 

 mentioned localities. As examples, Iberis amara and Er odium, maritimum 

 are cited : the former about Pangboum," etc., because it abounds there (its 

 range is quoted from ' Cybele Britannica '). The latter, as is well known, 

 occurs on various parts of the coast, as well as in the vicinity of saline 

 springs in the interior. The locality given is several miles from any 

 known salt-spring. 



Contributions to the Orchidology of India. By Prof. Lindley. 



The most remarkable and unexpected fact is brought to light by the 

 examination of a great mass of materials, that certain of the species are 

 found to have an extensive range. 



It has hitherto been believed that these plants were extremely local, such 

 being probably the case with epiphytal species ; but it has been proved 

 quite the reverse with the ten'estrial ones, the range of some of which 

 turns out to be as wide as that of the most ubiquitous species belonging to 

 other natiu-al orders. Orchis latifolia, which had been long known to 

 wander into North-western India, had now been found in Western Thibet. 

 Hei'minivm monorchis, in no respect distinguishable from its English state, 

 had been found in North-west India, and pi'obably in Sylhet. Gymna- 

 denia cucullata, a plant of Eastern Europe and Siberia, seemed to be 

 the same as one gathered by Dr. Hooker at an elevation of 14,000 feet in 

 Sikkim. Goodyera repens was common in Sikkim ; while G. procera ex- 



