HYPNOIDEAE. | Hypyum. 425 
Dill. Musc. p. 293. t. 37. f. 27. — Neckera palustris Willd. Prodr, 
Fl. Berol. n. 943. 3 
B. subsphaericarpon ; iiec magna turgide globoso- ' 
ovata rectiuscula. —H. sphaerocarpon Spreng. Syst. Veget, IV. 
p. 201. — H. Stereodon subsphaericarpon Brid. Hl, p. 641. — | H: 
subsphaericarpon Schleich, Cent. ll. N. 46. — H. foliis ovato -lan- 
geolatis falcatis, capsulis ovatis. Hall. Hist. St. Helv. n. 1738. 
y. aquatile; prostratum, foliis magis erectis. H. aqua- 
tile Mart. Fl. Erl. Crypt. p. 19. t. 1. f. B. 
Patria. Per totam Europam et Americam septen- 
trionalem, e planitie in alpes ascendens, aquam stagnan- 
iem v. fluentem et ibidem lignum putridum atque saxa 
habitans. "Var. f. in alpibus rivulos ét saxa humida 
amans. — Aestate. 
Subsectio II. Homomallia. Caulis ascendens, dichotome 
ramosus, apice recto; folia plus minus secunda, nidum falcata, 
nunquam sguarrulosa, 
A Drepanophyllaria foliis secundis, nec falcatis, a 
Strigodio foliis erectis differt. 
a. Folia secunda patula. 
362. H. rusciforme Weis (Crypt. Gött. 1770! p. 
225.); dioicum; cespites latissimi laxe intertexti firmi 
sordide viridissimi; caulis ramis elongatis robustis squa- 
mose foliosis dichotomis vage ramosus, plerumque flui- 
tans vel repens; folia. caulina laxe. conferta vel densiora 
subsecunda, appressa, humore erecto- patula , magna ro- 
busta, late ovato-lanceolata, concava, margine erecto 
remote denticulato, nervo valido ultra medium. tenuiter 
evanido, cellulis angustissime linearibus densis ehlorophyl- 
losis, alaribus ad basin parum impressam indistinctis ma- 
jusculis pachydermibus rectangularibus; perich. pauca ap- 
pressa, e basi vaginante laxissime reticulata enervi bre- 
viuscule et latiuseule acuminata stricta, margine superne 
hie illic emarginato v. dentieulato; theca in ped. molli 
breviusculo rubente laevi inclinata, e collo brevi ventri- 
coso- oblonga, ore coarctata, pachydermis carnosa, late 
annulata, füscidula, operc. conico longe oblique subulato ; 
