56 



veloped. Moreover, in Fig. No. 3, which brings out this point 

 more forcibly than Fig. No. 4, it will also be seen, that the old 

 tuber (1923) is actually producing a bud similar to the tuber of 

 1924, such a thing I have never come across before, and I have 

 examined some hundreds of tubers, which can be done in most 

 cases — I am glad to say — without uprooting them. This bud 

 it will further be seen, is developed on the basal or third inter- 

 node, the tuber being of a round nature, whereas, the one for 



1924, is somewhat slender and elongated. The more general 

 rule, I think, is for the succeeding tubers to be similar in shape 

 to the preceeding ones, which is well exemplified in figures Nos. 

 5 and 10, more especially No. 10 and Figs. 3, 4 and 5 of plate 

 No. 2, of my previous paper. In Fig. No. 6, we get another 

 instance of a bud appearing on the old tuber. The cause of this 

 phenomenon, I think, lies in the fact of the plant's habitat, 

 somewhat dry coniferous woods, in place of the usually damp 

 situations that Calypso favours. This is conducive to the pres- 

 ervation of the old tubers, which in some cases apparently, 

 contain an amount of vitality in the second year sufficient to 

 produce a bud, even if this bud never comes to maturity, which 

 is questionable. In further reference to this matter of pres- 

 ervation, I might state, that I have photographs of two plants 

 of Liparis Loeselii, found growing on very dry ground — which 

 is unusual for this species — that show signs of four and five 

 generations of tubers, still remaining, a thing almost impossible 

 in the very wet situations I usually find the species, where 

 signs of three generations are uncommon. Figs. Nos. 7, 9, 11 

 and 12, show the very early stages of the plant's existence. Fig. 

 No. 9, having the coralloid palmate body or rhizome accom- 

 panying the tuber, as mentioned by Liboschitz and Trinius, 

 in their " Flore des Environs de St. Petersbourg et de Moscov," 

 1818, p. 214, finer examples of which will be seen in my previous 

 paper. 



Fig. No. 12, is an interesting little plant, with its very small 

 leaf and no doubt first flower bud in evidence Aug. 2, on which 

 date the other three small plants were collected. Figure No. 10, 

 has already been alluded to in connection with the tubers re- 

 sembling one another so nearly, but it is a good example also, 

 of how one might have been deceived on finding the plant in 



1925, into imagining that it represented five generations, where- 



