Grundzuge einer Monogr. lib. d. Laubmoos-Gattung Thamnium. 217 
3. T. subserratum (Hooker). 
Neckera subserrata (et, per errorem typographicum, »N. sub- 
seriata«) W. J. Hooker, icon, plant., vol. 1, t. 21, fig. 7. (1837). 
»N. subseriata Hook, in Wall. cat. p. 7624* : W. II. I [arvey 
and J. D. Hooker, musci indici p. 13 (1840). 
Hypnum subserratum C. M. syn. II, p. 228 (1851). 
Thamnium subseriatum Dozy et Molkenb., Mitten musci from 
Japan and China p. 155 (1865); Lacoste in Miquel, prolusio fl. 
japon. 1867. 
Porotrichum (Thamnium) subseriatum (Dozy et Molkenb.) Mitten 
musci recorded from Japan p. 175; Isothecium Lindberg 1872. 
Neckera arcuans Mitten musci Ind. orient, p. 123 (1859). 
Thamnium Sandei Bescherelle, in ann. d. sciences natur. ser. 7, 
17 (1893), p. 381. 
Hypnum Schmidii C. M., in Flora 1854, p. 574. 
H. alleghaniense C. M. syn. II, p. 502 (1851); Sullivant, icon, 
muscor. p. 161; Lesquereux et James, mosses of N. America 
p. 362; Thamnium Bryol. eur. 
Thamnium subneckeroides GeheeB; T. Jokohamae C. M. in 
herb.; T. Duthiellae C. M. in litt. ad Levier; T. Biondii C. M., 
bryol. prov. Schen-Si sinensis p. 195. 
Hypnum alopecurum Montagne, in ann. d. sciences natur. (1842) 
p. 245. 
»H. neckeroides Hooker et Wilson in Drummond, musci America 
Sullivant 1. c; Lesquereux et James 1. c. 
Differt a T. alopecuro: 
Folia latiora, superne grosse dentata, plerumque obtusata; 
cellulae superiores numerosiores et majores, 0,01 — 0,015 mm latae, 
alares et inferiores marginales subquadratae; costa paullo brevior. 
Folia caulina late ovata, infra medium saepe integerrima sed 
interdum denticulata, superne dentibus magnis haud paucis praedita, 
basi interdum angustata et margine inferne saepe revoluta; cellulae 
inferiores plurimae lineari-lanceolatae vel suboblongae; costa dentata. 
Folia ramea ovato-oblonga vel subovalia, distinctius et saepe 
dupliciter serrata vel subfimbriata; cellulae plurimae magnae sub- 
rhombeae. 
Folia perichaetialia integerrima, saepius ecostata. Capsula, peri- 
stomium et seta ut in T. alopecuro. 
Frons fere pinnata; rami turgidiusculi vel turgidi, raro leviter 
compressi. Caulis interdum paraphylliis praeditus, plerumque haud 
altus. Squamae obtusatae vel obtusae, late ovatae, plerumque 
subintegerrimae ; cellulae superiores (supra medium folii) dilatatae, 
inferiores lanceolatae- linearis; costa abbreviata. 
Dioicum, rarius monoicum vel synoicum. 
