24 Plagiochila. 
x 
Ds 
Dimidiatae. Folia subopposita, basi ventrali dilatata noun 
vero in cristam conniventia, arcte dentato - ciliata. ^ Perian- 
thium involucrum aequans vel paulo superans: Specc. 34 — 38. 
&. 3. Cucullatae, Folia basi ventrali reflexa et pleraque in cucullum 
convoluta, ciliata: Specc. 39, 40, 
Cristatae, Folia basi infera dilatata et vel omhia vel pleraque 
in cristam bilamellatam conniventia, denticulata.  Perian- 
thium involucro longius: Specc. 41 — 659. 
5. Dendroideae. Wami basi integri apice dichotomo-dendroidei: 
Specc. 60, 61. 
Sect. 3. Asplenioideae. Perianthium involucro lon- 
gius vel praelongum (in pluribus ignotum.) Rami adscendentes vel 
erectiuscali vage ramosi. Folia subrotunda, integerrima vel minute 
dentato-ciliata, 
P7 
» 
uo 
&. I. Foliis integerrimis: Specc. 62 — 66. 
*. 9. Foliis denticulato-ciliatis: Specc. 67 — 69. 
Sect. 4. NHeteromallae.  Perianthia elongata. Rami 
subsimplices, arcuati, rarius dichotomo-fasciculati vel pinnati, Folia 
heteromalla. 
& 1|. Coniugatae. Folia opposita, erecto-adpressa, basi coadunata: 
Specc. 70 — 72, » 
&. 2, Bifariae. Folia erecto-adpressa vel patula, basi libera: 
Specc. 73 — 79. 
8. 3. Secundae. Folia patentia vel divergenti - decurva, retroflexa, 
margine plana: Specc. 80 — 91. 
8. 4. Crispulae. Folia margine infero undulato-crispo: Specc.92— 97. 
Sect. 5. €onnatae.  Perianthia triangulari- pyramidalia 
angulis ciliatis. Amphigastria cum foliis subconnata: Specc. 98, 99. 
Sect. 6. B»endroideae. Perianthium exsertum — ore 
ciliato. Rami flagelliformes apice dendroidei. Folia obliqua, integerrima, 
bifida: Spec. 190, 
Sect. 1l. Vagae. 
Folia vel basi infera dilatata semicordata, vel basi cuneata obovato- 
oblonga, vel denique subaequalia oblongo-linearia, patenti-divergentia, 
dentato -spinulosa, rarius ciliata vel integerrima. X Amphigastria in 
una specie obvia. 
&. 1. Patulae. Folia vel dimidiato-cordata vel ovata, patula, 
 spinuloso-denticulata. 
1. Plagiochila decipiens. N. ab E. et Mont. 
Pl. caule repente flagellifero ramis erectis. subsimplicibus, foliis sub- 
rotundis concavis margine dorsali inflexis, inferioribus £ntegerrimis superi- 
oribus mucronatis vel truncato-bi-tridentatis, fructu. 
