1 908-1909.] Notes on Lastrea remota {Moore). 87 



the Botanical Garden of Carlsruhe, whence it has passed into 

 the gardens of Freiburg and Leipzig." 



You will notice from the above description of his discovery 

 of this plant that he seems to hint at the idea of its being a 

 hybrid. As Dr J. T. Bos well Syme, F.L.S., who edits the 

 third edition of Sowerby's ' British Botany/ goes more fully 

 into the distinctions and differences between Lastrea remota 

 and its supposed parents, I shall quote what he says : " Frond 

 resembling in outline that of L. Filix-mas var. genuina, but 

 with longer stipes ; fronds 3 to 4 feet high, of which the stipe 

 is 9 inches to 1 foot long; pinn.'B pointing upwards at an 

 acute angle, longest at the middle of the frond, the longest 5 

 to 6 inches long; pinnules in the middle of the frond \ to 

 1 inch long. L. remota differs from L. Filix-mas in its longer 

 stipes and more compound fronds. The pinnules are not con- 

 tiguous, and are attached by a narrow base to the partial 

 rachis ; they are nearly equally cut in on both the anterior 

 and posterior sides, so that the basal ones are almost stalked, 

 with a tendency to be broadest near the middle or a little 

 below it, and are so deeply pinnatipartite that the frond 

 becomes almost tripinnate. The partial rachis is winged with 

 a narrow herbaceous stripe connecting the pinnules, which are 

 less decidedly opposite than those of L. Filix-mas, and the 

 lobes of the pinnules have a more decided mid-vein giving off 

 branches than even variety affinis of Filix-mas, though it 

 does obtain to some extent in the more divided forms of that 

 variety. Even in these, however, the pinnules, except those 

 at the bottom of the pinnse, are narrowed at the base only 

 on the anterior side and decurrent on the posterior side. In 

 remota the sori are placed in a line which is much closer 

 to the midrib of the pinnules than in L. Filix-mas. The scales 

 also are different, being more varied in form on the same 

 individual, and those at the base of the stipes are broader. 

 The indusium is smaller, thinner in texture, and with the 

 depression of the notch less marked than in Filix-mas, and 

 the edges are finely denticulate. From L. rigida it differs in 

 its much longer fronds, which have the basal pinnse con- 

 spicuously smaller than the succeeding ones, and all of them 

 making a much smaller angle with the rachis ; the pinnules 

 are much larger, and not auricled at the base, as is so fre- 



