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growths from the old rachides ; none of these have produced 

 prothalli. At Mr. Druery's suggestion I replanted the old 



pieces of fronds in order to bring the living tips into contact 

 with the soil. 



August 10. — Another bud has appeared, close to the first , 

 on the upper surface of prothallus No. 2 ; the first bud is 

 Bending up a frond. Several other prothalli are developing 

 from the old tips. The fleshy process on prothallus No. I 

 is forking near its base ; the enlarged process begins to look 

 like the stump of a frond, but is not eircinate. 



Sept. 1, 1898. — The fleshy process from prothallus No. I 

 lias assumed the form of an axis of growth, a bud or crown 

 forming at the bifurcation, and the blunt processes assuming 

 the character of fronds. 



Oct. 1. — The pinnulets or leaflets upon the various fronds 

 from the prothallus and buds are semi -translucent and 

 lacerated at their edges. I am pinning down a few of them 

 to see if they will develop into prothalli. The first bud 

 which appeared (not from a prothallus) is now a dense tuft 

 of ramulose fronds like the parent unco-glomeratum. Pro- 

 thallus No. 1 has three distinct axes of growth, from all of 

 which ramulose fronds are arising. The prothallus is 

 beginning to shrink. 



Oct. 18. — Some of the pinnulets which I pinned down 

 on Oct. 1 are obviously growing at their edges, and one or 

 two which do not quite touch the soil are developing root- 

 hairs. These are, however, short and scanty. 



Nov. 6. — A frondlet is emerging from the sinus of a third 

 prothallus. There does not seem to be any functional 

 difference between the upper and lower surfaces, (.'lose to 

 the sinus the prothallus has twisted upon itself, the under 

 surface coming uppermost and taking on the smooth shining 

 character of the normal upper surface. Root-hairs are 



