f POTTIOIDEAE. ZYGO0DON. - 667 
v. bigeminalis conglütinatis planis pallidis 
losis carnosulis, e cellularum serie unica. orma- 
tis, siccitate patulis v. reflexis et thecae modo Or- 
thotrichorum appressis compositum; internum: ci- 
lia 8— 16 linearia hyalina plus minus conniventia 
horizontalia v. dentibus externis similia. | Theca 
pyriformis sulcata rarius glabra , exannulata. 
Zygodonteae Br. Europ. : 
Sectio I. Amphidium Nees in Sturm Fl. Germ. Il. 17. — 
Folia lata subspathulata e cellulis pottioideo - hexagonis areolata, 
planiuscula v. carinata laevia, erecta. Theca sulcata. 
1. Z. conoideus Hook. et Tayl. (Musc. Brit. p. 71. 
t. 291!); monoicus; pulvinatus humilis breviter ramosus, 
inferne tomentosus viridissimus ; folia caulina dense con- 
ferta, madefacta patula, e basi angustiore ampliuscule 
hexagone reticulata sensim late ovato -lanceolata s. sub= 
spathulato - acuminata, planiuscula nervo ante apicem 
evanido crassiusculo, integerrima, e celfulis ubique magnis 
perfecte hexagonis chlorophyllosis firmis areolata; peri- 
chaetialia basi multo laxius retieulata; theca in ped. brevi 
flavido crassiusculo erecta, pyriformi-ovalis, fuscescens 
S8-striata, ore coarctata, operculo conico subulato obliquo; 
perist. dentes externi 8 bigeminati latiusculi subrugulosi 
pallide lutescentes sicci reflexi apice liberi, interni: cilia 
8 cum dent. alternantia breviora anguste subulata hya- 
lina subrecta. 
Bryol. Eur. Fasc. IV. p. 8. t. 2. — Brid. I. p. 590. — Z. co- 
noideus B. succulentus Hook. et Grev. in Edinb. Journ. of sc. 1824, — 
Amphidium puleinatum Nees in Sturm Fl. Germ. II. Fasc. 17. — 
Gagea compacta Raddi. Nuova Raccolt. Dec. ll. — Gymnocephalus 
conoideus Schw. Suppl. l. H. p. 87. — — Weisia Forsteri Brid. I. 
p. 357. e spec. auth. Hb. Bridel.| — , Grimmia Forsteri Sm. Fl. 
Brit, HE. p. 1196. —  Bryum Forsteri Dicks. Fasc. Hl. Pl. Cr. p. 4. 
t 7. f. 8 
Patria. Ad arborum truncos Germaniae, Galliae me- 
rid. et Pyrenaeorum, Britanniae, Italiae et Sardiniae. In 
Norvegia indicat Ân gstróm; e Brasilia lectum accepisse 
Br. et Sch. dicunt. Revera? — Fere. 
