NO. 4 



MEXICAN MOSSES — THERIOT 



41 



I segregate this plant from E. striatuiii, because, in addition to the 

 characters enumerated above, the European species is absolutely un- 



FiG. 22. — Eurhynchiiiui siibstriatum Ther. i, stem leaf; 2, median and mar- 

 ginal cells ; 3, basal cells ; 4, 5, branch leaves ; 6, cross-section of branch leaf ; 

 7, apical cells ; 8, median cells ; 9, perichaetial leaf. 



known throughout the American continent and it is therefore hardly 

 possible to consider the moss from Llano Grande as a local form. 



EURHYNCHIUM STOKESII (Turn.) Bry. Eur. 

 Puebla: Boca del Monte (4738) ; a form with stems less densely 

 branched, elongate, and laxly foliate. Valle de Mexico : Contreras 

 {Bro. Amable 15 18). 



ENTODONTACEAE (continued) 

 PTERIGYNANDRUM FILIFORME (Timm.) Hedw. var. MEXICANUM Ther., 



Folia valde secunda, latiora (0.5 mm.), cellulis apice parum pro- 

 minulis, costa gemella usque ad y folii producta. 



Valle de Mexico: Santa Rosa (Bro. Amahlc 1503). Hidalgo: 

 Mineral del Chico {Orcitft 6649). 



The typical form of this species has not yet been found in Mexico. 



ROZEA STRICTA Besch. Prodr. Bryol. Mex. 100. 1871 

 Valle de Mexico (Bro. Aiiiable) : Desierto (1418, 1425, 1444); 

 Elano Grande (1731). 



ENTODON JAMESONII (Tayl.) Mitt. Muse. Austr. Amer. 525. 1869 

 Morelia: Cerro Azul (4779). Valle de Mexico (Bro. Amable) : 

 Desierto (1245); Contadero (1311). 



