P. DUSÉN, LA FLORE DE LA SERRA DO ITATIAYA 113 



Lepidozia inaequalis L. et L. 



In silvulis ad truncos arborum passim, praesertim tamen in truncis putridis, 

 non rare copioseoccurrens; in ait. c. 2100 — 2G00 m s. m. inventa. 



Lepidozia verrucosa Steph. 



In caespitibus graminearum emortuis in ait. c. 2200— 2500 m s. m , interdum 

 frequens. 



Gen. Isotachis Mitt. 

 Isotachis inflata STEru. n. sp. 



Sterilis major t'usco-brunnea flaceida in saxis irroratis 1 axe caespi tans. Caulis 

 ad 8 cm longus tenuis ftiscus rigidus parum ramosus.ramis plus minus longis parum 

 patulis. Fo'ia conferta oblique patula eonduplicatim concava, valde inflata, in piano 

 reniformia subsymmetrica 3,5 mm lata, 2,2 mm longa, brevi basi inserta, margine 

 postico remote bidentato, apice ad 1/5 late lunatim exciso, Iobis late triangulatis acutis 

 aequimagnis. Cellulae apicales 27 X 3G : J -, basales 27X"2 :•>• parietibus validis. 

 Amphig. foliis multo minora 2 mm lata, subcircularia utrinque 3 -dentata, dentibus 

 brevibus validis, apice adl/2biloba, lobis late triangulatis porrectis obtusis, sinu 

 augusto exciso. 



In rivulo Ribeirào do Itatiaya diçto, ubi in altc. 2500m s. m. copioseoccurrit. 



Isotachis mascula G. 

 Prope Retira do Ramos ad saxa rivalia copiose occurrens . 

 Isotachis parva Steph. n. sp. 



Sterilis, minor, rigidula, flavo-virens, dense caespitosa saxicola. Caulis ad 15 

 mm longus simplex erectus vol prostratus hic illic radicellis longis fasciculatim e 

 basi amphigastriorum ortis repens. Folia remotiuscula 1 mm longa, eonduplicatim 

 concava, brevissima basi inserta, oblique patula, adscendentia, symmetrica sub- 

 rotunda parum longiora quam lata, margine postico remote biangulato ceterum 

 integerrima ad 1/3 emarginato-biloba, lobis late triangulatis acutis aequimagnis. 

 Cellulae apicales 18X 27 !* parietibus validis irregulariter nodulosis, basales 18X 7 2 

 u. parietibus validissimis. Amphig. foliis parum breviora (0,8 mm longa) sed duplo 

 angustiora, ambitu obovata, brevi basi inserta, utrinque dente mediano valido recte 

 patulo armata basi cuneatim angustata, apice ad 1/2 biloba, loi is anguste triangulatis 

 acutis porrectis. 



Ad saxa in fruticeto inter Retira do Ramos et Maciera do Couto in ait. c. 2100 

 m s. m.;semel tantum observata. 



6522 15 



