duce plants. A short time ago one of our men drew my attention 

 to one of the stolons or cord-like runners of a plant of N. undu- 

 lata which had crept over the side of a pot and run several feet 

 on the surface of the stage, which was covered with ashes, and 

 every few inches roots had been emitted, and on the roots num- 

 bers of tubers had been formed, so that there was quite a string 

 of them in bunches. These tubers were as usual collected, put in 

 soil, and in due time they will produce growth and make plants of 

 nice size in a short time. 



You ask if your readers can furnish you with other instances 

 of ferns bearing tubers. There is one only, apart from the 

 Nephrolepis, that I can think of as tuber-bearing, and that is 

 Adiantum diaphanum or setulosnm. This produces in some 

 instances a large number of very tiny tubers on its roots about the 

 size of a mustard- seed. I have seen a cluster of fibrous roots 

 bearing twenty to thirty tubers in a length of three or four inches, 

 not all on one root of course, but on the various fibres branching 

 off from the main root This species produces a large number of 

 plants on its roots, as also does Adiantum amabile, but in the 

 latter species. always and in the former very often I have failed to 

 detect indications of tubers where the plants are attached to the 

 roots, and it would seem as if their origin was from buds rather 

 than from tubers. In the case of diaphanum, , however, the tubers 

 often produce plants. 



In concluding these somewhat lengthy remarks, it may be 

 mentioned that there are a number of other Nephrolepis besides 

 exaltata which do not produce tubers. 



Fern Nurseries, Sale, Manchester, England. 



CRYPTOGRAMME ACROSTICHOIDES. 



I HAVE just returned from the summit of the Olympic Moun- 

 tains, and I found at the base of a mountain, at an altitude of 

 more than one thousand feet, a beautiful specimen of Crypto- 

 gra?nme acrostichoides. At the summit this plant grew in abun- 

 dance, but not at the base. This was the only plant seen below. 

 Upon examination I found that the large rock upon which the 

 plant grew had rolled down from the summit and had been in its 

 present position for years, as shown by its depth in the ground 

 and also by the moss. This shows that the plant had adapted 

 itself to its new environment. It was larger than the average 



