222 
Botanical Notes. 
Dermatiscum.—In a note just received from Dr. Nylander, he 
informs me that the Lichen referred toin the July BULLETIN was 
called by him Dermatiscum porcellaneum. But I think I am 
not responsible for the misspelling, though the error is of less 
consequence, as the plant must be known as D. Catawdense, 
(Willey) Nyl., that name having been first published. 
Nylander’s Synopsis, Vou. Il. I have recently received a 
copy of Fascicle 1, Vol. II. of this work. It contains 68 pages, 
breaks off abruptly and is without date, but appears to have 
been issued about or before 1883. It covers Pyxine, Umbilicaria, 
Psoroma, Gymnoderma, Pannaria, Coccocarpia, (these Genera, 
so far as American, being included by Tuckerman in Panunaria), 
Heppia, Erioderma, Cora, (this, however, in a note being referred 
to the Verrucaria near Normandina) Dichonema, Amphiloma 
(Pannaria of Tuck.), Parmeliopsis, (Parmelia and Cetraria § 
Tuck., Syn.), Sguamaria (Lecanora § Tuck). Under Umbil- | 
icaria is a species, U. dictyiza, Nyl., described as similar to 
U. pustulata, but the thallus obscurely cinereous and reticulate- 
rugose between the papule, the fruit small and often agglomerate. 
It is said to occur on mountain rocks, from North Carolina to 
Newfoundland. I have not seen it and it is not noticed by 
Tuckerman. 
It is an error to say (p. 34) that Pannaria leucosticta is an earth 
Lichen. It occurs only on rock and bark, and is hardly GS 
cies of P. lepidiota. 
Under Heppia is H. planescens, Nyl., ‘‘the thallus cue 
cinerascent, squamose, smooth, opaque, sub-plane, large,” fruit un- 
known. On earth from Texas, sent by Tuckerman, who does 
not notice the plant in his synopsis; probably the absence of fruit 
rendered it difficult for him to determine its true place. 
Erioderma Wrightii, Tuck., is cited from Mexico. 
Parmeliopsis Wrightii, on p. 56, cited from Tuck. Obs. is _ 
Physcidia Wrightii, Tuck. Obs., 1862, p. 400. P. sguamulosa, 
Tuck., in the following page of the same, is noted in my copy 
in the author's writing, as “a remarkable variety but not a spe- 
cies,” and in a letter to myself he referred the genus to the 
vicinity of Pannaria. H. WILLEY. 
