DIASTALOBA | FRULLANIA, 50 
Suscenus 6.—DIASTALOBA, S&. 
Sectio (s. subgenus) Frullaniw, habitu proprio pusillo tenello, 
preecipueque foliis minus profunde fissis (unde lobulus haud ex ipsa 
folii basi sed ad folii altitudinis {-} oritur, cauleque seepissime divergit) 
distincta. 
Plantz pusillz rufescentes, raro viridulee, arcte repentes, sparse (in F’r. 
exilt procumbentes  substratificatee) pinnate bipinnatzeve, aliis 
ramulis seepe microphyllis. 
Folia imbricata tenuia subplana vel caviuscula, ovata (raro semicordata) 
rotundata vel seepe apiculata integerrima, ab apice ad 3—? bi- (tri-) 
loba ; lobulus a caule dissitus pro more obliquus, brevi-cylindricus— 
raro” galeiformis, interlobulo triangulari sepe adjecto; cellule 
plerumque parve, pariete incrassato, raro paucee inferiores majores in 
ocellum aggregate. 
Foliola $ folium subequantia, subplana, seepe angusta, raro rotunda, ad 
dy. raro ad 3 bifida, segmentis acutis, integerrima. 
Flores plerumque monoici: @ terminales. Bracteze 2-5-jugee, com- 
plicatee, ad Scapanie instar distiche patule, apice solo decurvule, 
increscentes, intime foliis plus duplo longiores, paulo ineequilobee, 
lobis omnibus szepius acuminatis, lobulis idem ac bracteolee bifidee 
segmentis plerumque plus minus incisis raro integerrimis. 
Perianthia pro plantulis magna pyriformia, interdum obcordata, triquetra, 
rostellata, rarissime (e. carmis lateralibus ut videtur duplicatis) 
5-carinata, in uniea sp. pluricarinata. 
Bractee ¢ 3-4-juge, vel ramulo proprio compresso-globoso tenentes, 
vel medio ramo foliis consecutive. 
Hab. In cortice, perseepe alias hepaticas, Frullanias precipue, in- 
festans. 
Distr. Species sub 25 cognovimus, in terris tropicis australibusque 
totis dispersas, unicam (fr. Carolinianam Sull.) in America boreali 
temperata, nullam in Europa. Ipse "perpaucas legi, alias in sylvis 
Amazonicis, submaritimis preecipue, alias in Andibus inferioribus, vix 
supra 1500™ alt. ascendentes. 
A. Flores monoict. 
44, Fr, exilis—Rigidula plumeformi-pinnata. F. imbricata oblique ovata 
abrupte minute apiculata, lobulo 3-4plo breviore clavato-oblongo 
dissito cauli subparallelo; c. minute, paucz subbasales magne. 
Foliola duplo breviora orbiculata fere ad $ bifida. Br. 3-juge, 
intime lobulis bracteoleeque segmentis acuminatis, basi 1-2 
laciniatis. Per. majuscula subpyriformia triquetra abrupte longi- 
rostria. 
45. Fr. compsotera.—Caules debiles pinnati, aliis ramis microphyllis. F. 
imbricata ovato-rotunda, lobulo triplo breviore distante subobliquo 
clavato-oblongo, ¢. parvulis. Foliola duplo minora subrotunda 
angulata fere ad + bifida, segmentis acutis. Br. 5-jugee, intime 
lobulis subacuminatis basi subdentatis ; bracteola longe oblonga 
carinata ad 4 bifida, segmentis subacuminatis, integerrima. Per. 
subemersa pyriformia rotundata longirostria triquetra. 
