Piagiochila. FRANZ STEPHANI. SPECIES HEPATICARUM. 601 
8 cm. longus, rufus, validus simplex vel parum ramosus. Folia caulina 
plus 3 mm. longa, parum imbricata, oblique patula, angulo 67° postice 
parum ampliata caulem tegentia vel recurva, haud decurrentia, norma- 
liter ovato-oblonga, sæpe ovata, acuta vel obtusata vel oblique truncata, 
asymmetrica, margine antico nudo substricto vel parum curvato, poslico 
arcuato superne stricto sæpe nudo vel sub apice paucidenticulato, ipso 
apice similiter armalo, dentibus ubique brevibus pungentibus oblique 
porrectis vel recte patulis. Cellulæ apicales 36 y trigonis magnis trun- 
catis substellatis, basales 27 X 72 y parietibus longioribus maxime 
trabeculatis. 
Hab. Hawai (Baldwin). 
IV. Ovatotrigonæ. 
296. Plagiochila abietina (Nees) Ldbg. Spec. Hep., p. 134. 
Syn. : Jungermannia abietina Nees Hep. Javan., p. 76. 
P. Hampeana G. Bot. Zig. 1858, p. 38. 
Dioica, major, gracilis, rigida, flavescens. Caulis ad 10 cm. longus, 
rigidus fuscus strictus dense breviterque setulosus, pinnatim multira- 
mosus, ramis plus minus approximatis, subrecte patulis, apice micro- 
phyllis optimeque attenualis. Folia caulina adulta imbricata, cauli 
appressa et valde concava, sæpe decurvula, vix 2 mm. longa, antice 
longe decurrentia, postice ampliata, in plano caulem late superantia, 
ambitu late ovata vel ovato-trigona, medio amplissima, apice 3 plo 
angusliora, margine antico leviter arcuato nudo vel sub apice pauci- 
denticulato, postico a basi ad apicem semicirculari, dense spinoso, spinis 
ad 20 approximatis sub apice brevibus medio longioribus, recte patulis, 
versus basin longis attenualis et hamatis, apice oblique truncato denti- 
culalo, dentibus inæqualibus anteriore vulgo multo majore. Folia ramu- 
lina minora ovato-triangularia, haud decurrentia, margine postico arcuato 
grosse 6-7 spinoso, apice oblique truncato trispinoso, spinis valde irre- 
gularibus, longis brevibusque, latis et angustis mixtis varieque patulis. 
Cellulæ apicales 18 X 27 y trigonis majusculis érabeculatim confluen- 
tibus, basales 27 X 36 y, trigonis majusculis subnodulosis vulgo late 
trabeculatis. Folia floralia majora, longius spinosa subciliata. Perianthia 
in ramis brevibus terminalia vix exserla, compresso-obovata inferne 
inflala, ore truncato longe ciliato. 
Hab. Java (Blume, De Vriese, Korthals, Karsten, Schiffner), Sumatra 
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