67 



than for inst. in L. fruticulosum. The regular stratification does 

 not become much disturbed by burried conceptacles, which, as 

 remarked, partly appear to be wanting. especially in f. typica, 

 partly and most often to be found only in the peripherical portion 

 of the branches, very seldom in any great number. 



I have seen but few conceptacles of sporangia. They rather 

 resemble those in L. fruticulosum, and are scattered or somewhat 

 crowded in the upper part of the branches, convex but very little 

 prominent, about 250 — 300 p in diameter seen from the surface, 

 and not sharply marked. The sporangia are tetrasporic, 120 — 130 

 /j. long and 40 — 55 //■ broad. 



The conceptacles of cystocarps, of which I have also seen but 

 few, appear in other individ uals than the first named organs. They 

 are conical, frequently rather low, but higher than in L. fruticu- 

 losum and apparently not fully developed, about 400 y. in diameter 

 at the base. Besides I met with a couple of smaller ones, together 

 with the former and of the same shape as these, but only about 

 200 [i in diameter at the base. They probably are conceptacles 

 of antheridia. 



A couple of specimens found washed ashore at Kragero pro- 

 bably belong to this species. They are fragmentary, but appear to 

 coincide with L. fornicatum in development. The branches are 

 3 — 4 mm. in thickness, fastigiate, in one here and there somewhat 

 rubbed also in the part that has turned upwards, in another with 

 occasionally slightly compressed branches and the surface smooth. 

 However, some newly emptied conceptacles of sporangia are more 

 sharply marked than appear to be usual in the present species and 

 frequently about 300 fi in diameter, sometimes less sometimes a 

 little more. As remarked above I certainly have seen but some 

 few conceptacles of sporangia in this species, and it may be, that 

 they were not fully developed, although at least some of the 

 sporangia themselves appeared to be so, and apparently not larger 

 than above quoted, judging from scars after emptied ones. 



Relation to other species. This species shows greater affinity 

 to L. fruticulosum, but it on the other hand distinguishes itself 



