106  STEGOCARPI. PLEUROCARPI. NECKERA. 
apice incrassate quadrate reticulata; theca immersa bre- 
vissime pedunculata, subglobosa v. obovata turgida micro- 
stoma, gymnostoma exannulata, operc. brevi conico obli- 
quo, calyptra parva cucullata, saepius fissa. 
Hedwigia imberbis Spruce in Musc. Pyr. No. 338. Ann. and 
Mag. of Nat. Hist. 1849, p. 187. — Hedwigidium imberbe Br. Eu- 
rop. Fasc. 29 et 30; Hedwigidium; p. 3. t. 1. — Schistidium im- 
berbe Nees et Hsch. in Br. Germ. I. p. 99. t. 8, — Brid. I. p. 118, — 
Gymnostomum imberbe Engl. Bot. t. 2237. — Anoectangium im- 
berbe Hook. et Tayl. Musc. Brid, p. 14. t. 6. — A. ciliatum v. ru- 
fescens W. Arn. Disp. p. 11. 
Patria. Ad rupes prope Glengariff Hiberniae: Miss 
Hutchins, Wilson; in insula Osteröe Finmarkiae: 
Blytt; in Pyrenaeis ad Bagnères de Bigorre in rupib. 
porphyraceis: W. P. Sch., ad saxa granitica pr. Laruns: 
Spruce et in rupib. schistosis pr. Pouzac et Gazos: 
Philippe. —  Auctumno. 
Planta rarius occurrens notis cursive impressis ab 
omnibus congeneribus sectionis hujusce distinctissima. 
B. Folia uninervia. 
115. N. Drummondi C. Müll.; monoica? JV. imberbi 
simillima; caulis laxe cespitosus erectus subbiuncialis ex 
olivaceo nigricans, ramis siccitate acutis, ramulis Saepius 
flagelliformibus gracillimis; folia caulina erecto - appressa, 
humore patentia, late ovata apiculata concava, ob papil- 
las margine tenerrimas subcrenulata, integerrima, con- 
cava, margine recurva, nervo latissimo percursa; peri- 
chaetia conspicua subexserta, foliis caulinis similibus, sed 
latioribus rectioribus magis oblongis; theca in pedunculo 
aequilongo parum curvulo subexserta, rotundato - ovata, 
, 
siccitate rugoso - striata, operculo rostellato. +. 
Schistidium Drummondi Taylor. Lond. Journ. of bot. 1846. p. 
57. — An Sch. Australe Wils. Ms. huc pertineat, putemus. Auctor 
ipse l. c. p. 452. Neck. imberbis varietatem declaravit, quod dubi- 
tamus. 
Patria. Nova Hollandia, Swan River: James 
Drummond, 
A N. imberbi nervo praesente primo momento differt. 
