550  STEGOCARPI ACROCARPI. - Dissonos. 
A T. Jamesoni caracteribus cursive impressis facile 
distinguitur. 
6. T. Rudolphiana Br. et Sch. 1. p. 136. 
Patria. Bavaria superior circa Portenkirchen: Ar- 
nold; ibidem in alpib. Algovicis „in der Spielmannsau" 
ad fagum vetustam: Sendtner; ibidem in alpe »Ham- 
mersbacher - Alpe”, ad truncos Aceris, socio JVecherae 
(Leucodontis)“sciuroidis, alt. 4400: Sendtner 12. Aug. 
1849. 
Gen. IX. Dissodon Grev. et Arn. L p. 137. 
Calyptra inflato - campanulata. Perist. simpl. den- 
tes 32 in 8 vel 16 connati plani, madore in conum 
depressum conniventes, siccitate subincurvi. 
Sectio 1. Systylium Hsch. —  Operculum in columella ex- 
serta persistens ; perist. truncatum breve. 
Sectio 11, €yrtodon R. Br. — Operculum deciduum; perist. 
d. lanceolati acuti, 
b. Folia cuspidata. 
8. D. cuspidatus C. Müll I. p. 142. — Folia late 
obovata, laxe reticulata, firmiuscula, ad aristam elonga- 
tam saepius subdenticulata, theca in ped. perbrevi firmo, 
in apophysin obconicam turgescentem magnam thecam 
superantem erectam rubram incrassato, erecta, cylindra- 
cea, parva. 
Hook. et Wils. c, ic. in Fl. Antarct. I. p. 123. t. 57. 
Patria. Insulae Auckland: J. D. Hooker. 
A D. plagiopode notis cursive impressis certe distin- 
guitur. Tetraplodonti mnioidi e thecae forma simillimus, 
calyptra autem campanulata basi laciniis inflexis praedita 
generice differt. 
9. B. purpurascens C. Müll.; D. cuspidato simillimus, 
sed foliorum viridium nervus in arista elongata subrecurvd 
evaneseens, pedunculus longior, i» collum angustum et 
thecam. ovali-oblongam sensim incrassatus, calyptra D. 
Magellanici. 
