=. Il 
acuto, oblique truncatus in folii marginem recurvum trans- 
eunte. Üellulae acute hexagonae, 0,012:0,017 mm basi 
0,017:0,035 mm trigonis parvis subnodulosis. 
Amphigastria parum imbricata, transverse inserta caule 
quintuplo latiora cuneata, apice truncata, plana. 
Flores femin. pseudolaterales, bracteae unijugae, peri- 
anthio appressae superne patulae, ovato-oblongae, acutae 
vel obtusae, lobulo subtriplo breviore, oblique subrotundo, 
bracteola cuneato-ovata, supra basin convexo-sulcata, apice 
truncata vel lunatim emarginata bidentula. 
Perianthia exserta, late pyriformia, profunde triplicata, 
apice rotundata brevirostria. Androecia haud visa. 
Hab. Africa oce. Sibange, leg. Dr. Büttner 1887. Herb. 
Univ. Berolinensis. 
28. Mastigo-Lejeunea crispula. Steph. n. sp. 
Monoica, fusco-virens, laxe caespitosa. Caulis 5 em 
longus, vage ramosus, ramis remotis elongatis basi .defoliatis 
apice assurgentibus, masculis simplieibus femineis furcatis; 
stoloniferus. 
Folia dense imbricata, distiche deflexa, semicordato- 
ovata, apice obtuse angulata vel obtusa, dorso aurieulata, 
margine supero leniter arcuato repandulo, ventrali late in- 
curvo (unde folium falcatum apparet) crispulo; lobulus ovato- 
subquadratus, recte truncatus apice obtusus, turgidus, pro 
more omnino involutus, apice suo in folii margine recurvo 
occultus. Cellulae acute hexagonae, margine 0,012, ınedio 
0,017:0,025 mm basi ipsa parum majores, trigonis parvis 
subnodulosis. 
Ampbigastria dense imbricata, sinuatim inserta, e basi 
cuneata late reniformia, duplo latiora quam longa, in medio 
apice recurva et quasi emarginata supra basin convexo- 
appressa ceterum concave-patula, 
Flores feminei primum in caulis dicbotomia deinde 
pseudolaterales seriati, bracteae unijugae foliis aequimagnae, 
erecto-campanulatae, apice patulae, ovatae, acutiusculae, 
margine varie plicato-crispae; lobulo duplo breviore oblongo 
obtuso, bracteola obtuse carinata, cuneato-obovata, margine 
hie illie recurva. 
Perianthia parum emersa, oblonga, profunde triplicata, 
apice truncato suberostria. 
Androecia in medio ramulorum usque ad 12 juga; 
bracteae dense imbricatae, saccatim erectae ad !/a inaequa- 
liter bilobae, lobo dorsali recurvo obtuso, ventrali brevi 
incisura discreto, erecto rotundato. 
Hab. ad ostia flum. Niger, Old Calabar, in arborum 
cortice legit Moenkemeyer. Coll. No. 16. 
9* 
