248 Drxon: NEw MossEs FROM MALAY PENINSULA 
Sematophyllum Mitt. was validly published in Journ. Linn. 
Soc., viii, 5 (1864), for S. auricomum sp. nov., which is found 
identical with Hypnum substrumulosum Hampe; and this must 
be considered the type of the genus. Neither in that paper nor 
till 1869 did Mitten unite the two groups. 
Sematophyllum Mitt. does not date from the Musci Austro- 
americani, Journ. Linn. Soc., Bot., xii, 20 (1869), as stated by 
Paris, nor, as it is given by Jaeger, from 1868. Jaeger wisely 
attempts no closer reference than “Journ. Linn. Soc. 1868,” 
relying, no doubt, on Mitten’s note on p. 474 of the M. Austr.- 
amer., “Sematophyllum, Mitt. in Journ. Linn. Soc., 1868.” 
This, however, is a false reference. The only paper of that year 
that could be referred to is Mitten’s List of Samoan Mosses, 
in Journ. Linn. Soc., Bot., x (1868) where Mitten founded his 
genus nov. Acroporium, but where Sematophyllum is not even 
mentioned. Mitten wrote 1868 either by error for 1864, or, 
wishing to widen his genus Sematophyllum (to include the 
species of Acroporium), he referred to the 1868 paper, but should 
have cited Acroporium, instead of implying that Sematophyllum 
was there used. 
Clearly therefore Acroporium is the correct name to be used 
for the present group of species by those who keep the two 
groups separate; while Sematophyllum is the earliest name for 
the species of Rhaphidostegium (Schimp.) De Not. For those 
who still unite them the correct name would be Sematophyllum 
Mitt. (1864) emend. Mitt. 1869. 
Fleischer has found that several of the names used in the Bry. 
Jav., and subsequently employed by authors under Sematophy!- 
lum are antedated by earlier valid names, especially of Rein- 
wardt and Hornsch., and these of course must be restored. 
It may save trouble if I give here these equivalents for the more 
familiar specific names. 
Bry. Jav. Fleischer 
Hypnum scabrellum Lac. Acroporium lamprophyllum (Mitt.) 
H. gracilicaule Lac. A. diminuium (Brid.) 
H. Braunii C. M. A. rufum (Reinw. & Hornsch.) 
H. strepsiphyllum Mont. A. secundum (Reinw. & Hornsey, ) 
H. hyalinum Reinw. A. stramineum (Reinw. & Hornsey, 
