NO. I 



MEXICAN MOSSES THERIOT 



23 



No. 1216, from the Penon, is a robust form. No. 1234 from 

 Tlampantla is another and more remarkable form. Its leaves are 

 narrowed and long-acuminate as in var. acuminata Card., but by the 

 size and the areolation it is connected with the normal forms. 



LINDBERGIA MEXICANA var. ACUMINATA. Card. Rev. Bryol. 37: 51. 1910 



Puebla : Hue jotzingo (4615, 4857). Valle de Mexico : San Rafael 

 {Bro. Aniable 1276). 



LINDBERGIA OVATA Ther., sp. nov. 



(Fig. 9) 



Morelia: Cerro San Miguel (5078, 5079). 



Autoica. Caulis tenellus, repens, dense caespitosus, ramis erectis 

 vel circinatis. Folia densa, leviter imbricata, marginibus jjlanis, inte- 



FiG. 9. — Lindhergia ovata Ther. i, stem leaf; 2, branch leaf; 3, apical cells; 

 4, basal areolation ; 5, 6, perichaetial leaves ; 7, moist capsule ; 8, fragment of 

 peristome. 



gerrimis, 0.8 mm. longa, 0.5-0.6 mm. lata, rete chlorophylloso, opaco, 

 cellulis ovatis, laevibus, parum incrassatis, marginalibus transverse 

 dilatatis, costa subaequalia circa f folii evanescente. Folia perichaetia- 

 lia similia, intima vaginantia ; pedicellus erectus, i cm. longus ; capsula 

 oblonga, operculum conicum, peristomii dentes papillosi, opaci, 0.3 

 mm. alti, membrana pallida, vix papillosa, processus nulli ; sporae 

 30-36 /u, crassae. 



Differs from L. mexlcana Besch. by the branches with less imbricate 

 leaves, somewhat spreading when dry, by its oval leaves abruptly 

 contracted into a short acumen, with the costa stopping much farther 



