46 Muscineeu. 



hervor, was Soppit's Resultate bestätigt und insofern erweitert, 



•als das liier verwendete Infectionsmaterial von Polygonatum malti- 



florum stammte, während Soppit bei Aussaat der Sporidien nur 



auf Convallaria majalis Erfolge hatte. 



Behrens (Karlsruhe). 



Britton, E. 0., West Virginia Mosses. (Reprinted from 

 Dr. C. F. Millspaugh's preliminary Catalogue of the Flora of 

 West Virginia. November 1892. p. 483—494. Mit 2 Tafeln.) 



Aufzählung von 79 Species Laubmoosen, welche sich auf nach- 

 folgende Gattungen vertheilen: 



Polytrichvm L. (incl. Pogonatum P. B.), C'atharinea Ehrh., Georgia Ehrh., 

 Fissidens Hedw., Astrophyllum Neck. (Mnium L.), Sphaerocephalus Neck. (Aula- 

 vomnium Schwgr.), Bartramia Hedw., Philonotis Brid., Bryum L., Leptobryum 

 Schpr., Funaria Schrb., Physcomitrium Brid., Leemia Hedw. (Encalypta Schrb.), 

 Tortula L., Barbula Hedw., Mollia Schrk. (Weisia HedwJ, Leucobryum Hpe., 

 Dicranodontium B. S., Dicranum Hedw., Dicranella Schpr., Ditrichum Timm. 

 (Leptotrichum Hpe.), Ceratodon Brid., Weissia Ehrh. (Ulota Mohr), Thuidium B. S., 

 Anomodon Hook, et Tayl., Amblystegium B. S., Hypnum L., Brachythecium Schpr., 

 Thelia Sulliv., Hylocomium B. S., Campylium Mitt., Ptilium De Not. {Hypn. 

 crista castrensis L.), Stereodon Mitt., Pylaisia B. S., Plagiolhecium B. S., Cylindro- 

 thecium B. S., Entodon C. Müll., Neckera Hedw., Climacium W. et M., Leucodon 

 Schwgr., Hedwigia Ehrh. 



Ausführlich beschrieben werden wie folgt: 



1. Dicranodontium Virginicum Britt. u. sp. 



„Plauts bright glossy green, stems matted below by a red tomentum, leafy 

 nearly to apex, deuudate roughened above, with a few leaves at summit; leaves 

 erect or secund, straight or curled and twisted, often 5 mm long, narrowly subu- 

 late from a short, thick base, caducous ones with a long, slender, smooth point; 

 persistent ones serrate, blade inflexed cells densely chlorophyllose, filled with 

 oil globules, those of the basal angles, dear. Dioecious, the antheridia terminal 

 in conspicuous heads, bracts 3 — 4 mm long, from a short base, suddenly subu- 

 late, dentate at apex; pedicels lateral by the growth of innovations, l 1 /« — 2 cm 

 long, pale, glossy yellow, twisted in two directions, very slender, arcuate when 

 young, becoming erect before capsules niature. Capsule cylindric, ribbed only 

 at the mouth, l 1 /« — 2 mm long, beak straight or curved, shorter than the csipsule, 

 peristome bright red, not deep set, teeth split unequally to middle, striolate 

 at base, pale and granulöse above, annulus none, spores small, calyptra cucullate, 

 2 mm long, beaked, entire: Maturing in summer." 



2. Dicranodontium MiUspaughi Britt. n. sp. (Synonym: Campylopus flexuosus 

 Süll, not Brid.). 



„Plant slight yellowish green, silky, caespitose; stems matted with rufous 

 tomentum at base, 1—3 cm long, a few deuudate, roughened by the fragments 

 of the slightly caducous leaves. Leaves secund or erect-spreading, 4—5 mm 

 long, narrowly subulate from a broad base 1 — l 1 /* mm long, becoming tubulär 

 above with involled margins, basal angles not auricled, filled by large hyaline 

 cells to the base of the broad, brown vein, those of the blade oblong or square 

 next the vein, becoming spindle-shaped and prosenchymatous toward the margin, 

 vein thick, excurrent into a dentate slender tip, rough on back. Dioecious, 

 perichaetium 5 — 7 mm long, bracts sheathing half their length, tapering to a 

 long, slender, obscurely serrate tip, outer shorter, abruptly subulate, more sharply 

 sei rate; pedicels recurved, burying the capsules among the leaves, becoming 

 erect when old, 5—8 mm long, stout and twisted in two directions; capsules 

 pyriform-cylindric with a distinct neck, length about 1 mm without the lid which 

 is as long as the rest of the capsule, with a straight beak, calyptra cucullate, 

 entire; peristome red, connivent, teeth deep set, slender, split to middle, or 



