﻿North American Eurhynchia 223 



i. Cirriphyllum cirrosum (Schwaegr). 



Hypnwn cirrosum Schwaegr. Schulte's Reise auf d. Glockner, 

 365. 1804. 



Brachythecium cirrosum Schimp. Syn. Ed. 1 : 696. i860. 



Eurkynchium Vduckeri var. julaceum Br. & Sch. Bryol. Eur. 



fasc. 57-67 ', pi. jjo. 1854. 



MyuHum (?) Herjedalicum Schimp. Syn. Muse. 696. i860 

 {fide Jurat zkd). 



Eurkynchium cirrosum Husnot, Muse. Gall. 338. 1893. 



Gamctophyte in bright glossy yellow-green mats ; primary stems 

 •creeping, irregularly branching; branches 5-10 mm. long, julace- 

 ous ; branch leaves appressed-imbricate, decurrent, oblong-ovate, 

 not including acumination 1.3 x 0.65 mm., entire or serrulate above, 

 abruptly narrowed to a filiform acumination which is serrulate to 

 nearly entire, 0.5 mm. long, concave and spoon-shaped, cucullate at 

 base of acumination ; margins somewhat reflexed below ; costa 

 short, extending from ^3— ]/ 2 length of leaf, sometimes divided or 

 branching ; median cells 10-12 : 1 ; alar quadrate to hexagonal, 

 indistinct; stem leaves ovate, body of leaf 1.8-2.4 mm., acumina- 

 tion 0.6—1 mm. long, area of quadrate-hexagonal alar cells much 

 larger ; costa very short, median leaf-cells somewhat shorter : di- 

 oicous ; perichaetial leaves ecostate, serrate at apex, abruptly nar- 

 rowed into a long filiform squarrose serrate acumination. Sporo- 

 j)liyte 15 mm. high; seta twisted to the right, rough with blunt 

 papillae ; capsule ovoid, unsymmetric, horizontal, with operculum 

 2 mm. long, 2-1, chestnut-brown, not contracted under the mouth 

 when dry ; operculum sharply conical, not rostrate ; annulus * 

 not highly differentiated, segments split between the articulations ; 

 cilia 2, strongly nodose ; spores 18-20/^, finely roughened. 



Sporophyte not yet reported from America. Description of 



sporophyte adapted from Limpricht, Rab. Krypt. Fl. 4 s : 183. 



1897. 



Growing on rocks in mountains. Colorado, Brandegee, Wolf 

 & Rothrock ; Pike's Peak, Mrs. S. B. Clark, J. M. Holzinger. 



Type locality, European. 



Illustrations. Br. & Sch. 1. c; Husnot, Muse. Gall.//, gy ; 

 Limpricht, Rab. Krypt. Fl. 4 3 f. j86 ; Dixon & Jameson Handb. 

 Brit. Mosses, pL jj, f. G. 



*Mrs. Britton, March, 1897, in specimens collected in Algau by Molendo (Herb. 

 Jaeger), found the annulus to consist of 3 rows of very irregular and persistent cells. 



