ATHYRIUM FILIX-FEMINA, VAR. UNCO-GLOMERATUM. 265 
the old rhachides; 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. 
Fig. 3. 
Fig. 3.— Plantlet developed from bulbil on ultimate division of frond. 
Fig. 5.—Another prothallus with two asexual buds und subsequent development 
of same. 
August 10.—Another bud has appeared, close to the first, on 
the upper surface of prothallus No. 2; the first bud 1s sending 
Fig. 4. 
Fig. 4.— Fuller development of first prothallus (fig. 2). 
up a frond. Several other prothalli are developing from the old 
tips. The fleshy process on prothallus No. 1 is forking near its 
