Plagiochila. FRANZ STEPHANI. SPECIES HEPATICARUM. 975 
g«scar (Borgen, Besson, Campenon, Camboué, Kier, Talazac), Kiliman- 
dscharo (Hans Meyer), Nyassa (Whyte), Cape (Rehimann). 
V 131. P. Richardiana 5t. n. sp. 
Dioica, flavo-rufescens, apicibus roseis, major, robusta et rigida. Caulis 
ad 7 em. longus, ealidissüimus, basi fuscus, medio purpureus superne 
flavescens, simplex, medio supero longius ramosus, bipinnatus, ramis 
remolis divergentibus dendroideus. Folim caulina adulta, ad ^ mm. 
longa, conferta, maxima, /ate ligulata, asymmetrica, duplo longiora quam 
lata, margine antico parum sinuato, remote paucidentato vel nudo, 
postico magis areuato, medio supero ^4 dentato, dentibus magnis validis 
oblique porrectis, apice late truncato irregulariter grosse lacerato, laciniis 
2-9 maximis, reliquis spiniformibus dentibusque interjectis ; /olia caulina 
superiora contigua oblique patula, angulo 58? parum deeurrentia, leniter 
concava, in plano ovato-oblonga subsymmetriea, apice duplo angustiora 
quam basi (tertio infero amplissimo) marginibus leniter arcuatis, antico 
nudo, postico dente magno solitario in tertio supero. apice subrecte 
truncato exciso-bispinoso, spinis longis curvatis subeornuto, siepe spina 
tertia parva angusta interjecta. Folia ramulina vix diversa, nisi minora 
et sub apice utrinque 1-2 spinosa. Cellule apice 27 »« 36 &, trigonis 
magnis, basi 27 »« 5^4 w trigonis maximis, persepe trabeculatim con- 
Iluentibus. Folia floralia caulinis adultis subminora, inferne obconica, 
superne abrupte ligulata, apice et margine postico dense grosseque laci- 
nulatis. Perianthia adulta vix exserla, late compresso-obconica, ore trun- 
calo regulariter lacinulato, ala latiuseula integerrima duplo breviore. 
Capsula parva. Andrecia mediana, bracteis 8 jugis, confertis, superne 
squarrose patulis, ligulatis dentieulatis vel solum angulatis. 
Hab. Insul Mascareignes (Richard, Frappier). 
III. Angustifolie. 
/ 132. P. angustissima SL. n. sp. 
Dioica, minor, gracillima, rigida et fragilis flavo-virens, laxe caespitans. 
Caulis ad 3 cm. longus, rigidus, rufo-brunneus, tenuis, vage paucira- 
nosus, ramis longiusceulis divergentibus capillaceis. Folia caulina ad 
2 mm. longa, remota, oblique patula, angulo 585, postice breviter inserta, 
aatice sat longe decurrentia, plano-disticha et optime pectinata, linearia, 
fere quintuplo longiora quam lata, superne in plano curvata i. e. versus 
apcem caulis leniter nutantia, apice truncato-bidentata, sepe denticulis 
265 
