COLLECTED IN THE ISLAND OF BODIUGUEZ. 433 



Leptogium tremelloides, Ach. 



Sufficiently typical, and also occasionally somewhat atypical. 



On the trunks of trees ; fertile. Coll. Balf no. 2201. 



Family LICHEtfACEI. 

 Tribe Cladoniei. 



Cladonia Balfourit, Cromb., sp. n. 



f hallus minor, basi squamulosus, squamulis parvis, albo-glaucescenti- 

 bus, subfirmulis, crenatis, podetiis siraplicibus, brevissimis, apice raro 

 divisis, albo-pulverulentis (vel pulvere subvirescenti-albo obductis), 

 K— , contra squamis K+ (flaventibus) ; apothecia fusca (ut videtur), 

 rite evoluta non visa. 



• The general aspect of this plant is sufficiently peculiar to war- 

 rant its being regarded as a distinct species, notwithstanding that 

 the specimens seen are probably not fully developed as to thallus. 

 Only a few faint traces of young apothecia are visible, which 

 would refer it to the Phseoearpse, where it seems to have its 

 affinity in the section of C. pyxidata. 



On dead stumps of trees. Coll. Balf. no. 2204. 



Tribe Eoccellei. 



Roccella Montagnei, Bel., f. teretior, Cromb. 



This form is distinguished by the narrow rounded thallus, 



/< 



j* 



On rocks ; infertile. Coll. Balf. nos. 2206, 2288. 



Various and evidently young states, which seem referable to 

 this form, are also present. 



Tribe Usneei. 



Usnea FLORIDA (L.), Ach. 



On the branches of trees ; very sparingly and infertile. Coll. Balf. no. 

 2355. 



U. dasypogoides, Nyl., sp. n. " Subsimilis Usnece dasypoga, sed 

 thallo subflavido, lsevi, glabro, nee nisi in ramulis vel fibrillis saepius 

 leviter sparsira setuloso (quibus setulis etiam distinguitur ab U. tri- 

 chodea, Ach.). Apothecia ignota." — Nyl. in litt. 



These specimens vary considerably in length, the largest being 

 upwards of a foot long. Unfortunately none of them are fertile, 

 though scattered " cephalodia " not unfrequently occur. 



On the branches of trees: apparently common, Coll. Balf. nos. 521, 

 * 524, 2323. 



