Hypnum sect. Chrysohypnum Warming, Symb. fl. Bras. 286. 1870 2 
Stereohypnum (Hpe.) Fleischer Hedwigia 47: 273. 1908. 
When Brotherus, five years ago 3 issued the enumeration of the species of this, 
genus he gave a brief chronological list of synonyms and indicated the confusion 
of generic, subgeneric and section names which Hampe and Karl Muller had 
indulged in between 1847 and 1879. Max Fleischer 4 in the same year revised 
the genus to which he applied the sectional name Stereohypnum of Hampe. 
He gives on page 272 a list with the “inconsequential vagaries” of Hampe in 
chronological order and after spending two years on the study of the genus and 
seeing originals of most of the species, pronounced it a “time-robbing occupation.” 
Unfortunately he took up one of Hampe’s “inconsequential” names, which 
has given Monsieur Cardot the opportunity to transfer 106 names to Mitteno- 
thamnium of Hennings. One of Monsieur Cardot’s methods of citation is pecu- 
liar! Why should Mittenothamnium reptans (Sw.) be cited as (‘ ‘Hedw. ex Sw.”)?' 
Are all the Linnsean species to be cited in the same way? And is it to be (Hedw. 
ex Linn, ex Dillen.) because of the “1801” decision of the Belgian Congress? 
I have recently had the opportunity of studying a portion of the type of 
Hypnum diminutivum Hpe. from Caracas and find that Max Fleischer is mis- 
taken in referring this species to Ctenidium , 5 and that it is an exact equivalent 
of whac we have long known as M. thelistegum (C. M.). It includes also the 
following synonyms: 
Mittenothamnium diminutivum (Hpe.) E. G. B. comb. nov. 
Hypnum diminutivum Hpe. Linn. 20 : 86. 1847. 
Hypnum cubense C. M. Syn. 2 : 267. 1851. 
Hypnum thelistegum C. M. Syn. 2 : 269. 1851. 
Hypnum squamulosum C. M. Bot. Zeit. 14: 440. 1856. 
Hypnum perspicuum Hpe. Linn. 31: 529. 1862. 
Ectropoihecium cubense Mitt. Journ. Linn. Soc. 12 : 514. 1869. 
Hypnum campaniforme Hpe.; Warming Symb. fl. Bras. 281. 1870. fide 
Fleischer. 
Ctenidium diminutivum Fleisch. Hedw. 47: 291. 1908. 
Taxithelium thelidiellum Besch. 
Type locality: Caracas (On rotten logs, Moritz No. 20 ). 
Distribution: Florida, Cuba, Jamaica, Porto Rico, St. Domingo, St. 
Jan, Guadeloupe and Martinique to Trinidad and South xA.merica. Also in 
Mexico and Guatemala to Panama. 
Illustrations: Fleischer, Hedwigia 47: 291. fig: 10 . 
Exsiccatae: Sull. Musci Cub. Wright. 124, 125. 
6. In the second series of Observations on Nomenclature 6 M. Cardot takes 
up the question of citation in the case of Anoectangium Hedw., which Brotherus- 
2 Reprinted from Vet. Med. f. d. Nat. For. Kjob. 18 - 20 : 286. 1870. 
3 Nat. Pflanzenfam. fasc. 231 : 1049-1051. 1908. 
4 Hedwigia 47: 272. 1908. 
5 Hedwigia 47 : 290. 1908. 
® Revue Bryologique 40 : 40-45. 1913. 
