411 
Encalypta, Hedw. Aulacomnion, Schw. 
^10. Brye^e, Am. Gymnocephalus, 
Bryum, L. et Hook. Schw. 
Webera, Hedw. Funaria, L. 
Pohlia, Hedw. Entosthodon, Schw. 
Macranchenium, ^ 11. Bartramie^, 
Brid. Schw. 
Hemisynapsium, Bartramia, Hedw. 
Brid. Philonotis, Brid. 
Cladodium, Brid. Plagiopus, Brid. 
Orthodontium, Schvf. Glyphocarpus, Brid. 
Peromnion, Schw. Conostomum, Sw. 
Macrothecium, Brid. Cryptopodium, Brid. 
Cynodontium, Hedw. ? Spiridens, Nees. 
Afzelia, Ehrh. ^ 12. Polytrich^^, 
Cynodon, Brid. Arn. 
Ptychostomum, Nees Polytrichum, L. 
et Hornsch. Catharinea, Ehrh. 
Leptostomum, Br. Pogonatum, Beauv. 
Brachymenium,Hook. Psilopilum, Brid. 
Leptotheca, Schw. Lyellia, Br. 
Cinclidium, Sw. Dawsonia, Br. 
Minum, L. ^ 13. Buxbaumie.®, 
Arrhenopterum, Arn. 
Hedw. Buxbaumia, L. 
Meesia, Hedw. Diphyscium, Web. et 
Diplocomium, Web. et Mohr. 
Mohr. ^ 14. Filice.®, Brid. 
Timmia, Hedw. Schistostega, Web. et 
Grevillea, Beck. Mohr. 
Acidodontium, Schw. Drepanophyllum, 
Paludella, Brid. Rich. 
Fissidens, Hedw. 
Octodiceras, Brid. 
Skitophyllum, LaPyl. 
§ 2. HYPNACE®,H00k. 
Seta lateralis.) 
^ 1. Hypne®, Arn. 
fPeristomium duplex, 
Hypnum, L. 
Stercodon, Brid. 
Pylais(sa, La Pyl. 
Isothecium, Brid. 
Omaha, Brid. 
? Haplohymenium, 
Schw. 
Racopilum, Brid. 
Leskea, Hedw. 
Helicodontium, 
Schw, 
Climacium, Web. et 
Mohr. 
Neckera, Hedw. 
Anacamptodon, Brid, 
Leptohymenium., 
Schw. 
Regmatodon, Schw. 
Pilotrichum, Beauv. 
Lepidopilum, Brid. 
Daitonia, Hook. 
Cryphcea, Mohr. 
Esenbeckia, Brid. 
Hookeria, Sm. 
Chcetophora, Brid. 
Pterigophyllum, 
Brid. 
Distichifs pars. Brid. 
Hypopterigium, Brid. 
Cyathophorum, 
Beauv. 
Anomodon, Hook, et 
Tayl. 
Antitrichia, Brid. 
Isothecii pars. Brid. 
Actinodontium, Schw. 
Astrodontium, Schw. 
•ffP^fistomium du- 
plex. 
Fabronia, Raddi. 
Leptodon, Web. 
Cleistostoma, Brid. 
Pterigynandrum, 
Hedw. 
Phyllogonium, Brid. 
Lasia, Beauv. 
Campylodontium, 
Schw. 
Leucodon, Schw. 
Sclerodontium, Schw. 
Dicnemon, Schw. 
■\-\-\-Peristomium 
nullum. 
Ansectangium, Hedw. 
^ 2. Fontinalie®, 
Brid. 
Fontinalis, L. 
Order CCLXXXV. ANDR^EACEiE. 
Andr®e®, Schwcegr. Bridel . — Andr®ace®, Nixus PI. 24. (1833). 
Essential Character. — Branching moss-like plants, with imbricated ribbed or rib- 
less leaves. Theca with a calyptra, seated on a fleshy apophysis, splitting longitudinally 
into four equal valves whose summits are always bound together by the persistent oper- 
culum. Peristome 0. Spores attached to a central columella. 
Affinities. Linnaeus considered the only genus of which this order 
consists, the same as Jungermannia ; more recent observers have withdrawn 
it to associate with Mosses. It hardly however belongs more to the one than 
the other ; if it agrees with Mosses in having a calyptra and operculum, it 
disagrees in having a valvular theca ; and if it accords with Jungermanniaceae 
in th^e latter circumstance, it differs from them in the former. No Museolo- 
gist seems to know what to do with the genus, which appears best placed 
as the type of a distinct natural order. 
GENUS. 
Andraea, Ehr. 
