MASTIGO-LEJEUNEA. 103 
incurvo-appressis, lobulo bidentulo; foliolis oblatis reniformibus; bracte- 
arum lobulo subrotundo emarginato; perianthii carinis fere constanter 
alatis—ala 2-5 cellulas lata.—Folia inferiora plerumque rotundata, supe- 
riora apice triangulari obtusata rarius abrupte subacuta; lobulus sepe 
semiovalis, utrinque sensim angustata, sinu preelato obliquo, plica ultra 
lobulum verum transeunte. Foliola seepe late obcordato-cuneata—vel 
fere obcordato-reniformia, alis late recurvis. 
Inter formas hujusce speciei probabiliter enumeranda est Phragmicoma 
teretiuscula, L. et G., Syn. Hep. 745 (Gottsche, Mex. Leverm. 175) que 
vix differt nisi foliis sublongioribus. Phr. iuliformis Nees Syn. Hep. 
298, plane valde aftinis est, si non eadem. 
Phragmicoma repleta, Tayl.! Mst. (Madras: Wight in hb. Hook.—speci- 
mina ab ipso Lindenbergio ad Phr. versicolorem L. et G. redacta) eadem 
certe videtur ac Phr. humilis, Gotts.! (Java: hb. Lindberg). Heee autem 
vix differt a Lejeunea auriculata nisi statura minore, lobulo foliorum in- 
curvo-apiculato, perianthiisque preealte triquetris. 
In omnibus formis, jam supra memoratis, caules vidimus ad ramos 
novellos pulchre virides, basin versus plus minus fuscescentes. 
2. Mastico-LEJEUNEA INNOVANS, SPRUCE. 
Hab. Ad arborum truncos propre Panuré fl. Uaupes. 
#V25% 9; lob *5X°25; cs f* 75x75; br. lob 1°6 x -75, lobul 1-1 x°7; 
bria 1°3 X °6 3 per 1:25 x *75™™, 
Elatiuscula badia procumbens. Caules 2-pollicares implexi vage ramosi, 
ramique iteratim (ad 10ies) innovando-proliferi, innovationibus 
mono- (raro hetero-)tropis pauci-confertifoliis 2—3-floris ; alii rami 
apice attenuato decurvo radicantes. 
Folia densa, patula, concava siccando haud arcte (vel vix) convolutiva, 
falcata late semicordato-ovato-oblonga insigniter rotundata—apice 
semicirculari, basi subdecurrentia, margine postico late sinuato- 
incurva, complicato-biloba (plica ultra lobum protracta); lobulus folio 
24-plo brevior, semiovato-rhomboideus-rectangularisve acutus, medio 
margine unidentatus, solum ad plicam inflatus, ceeterum planus 
appressus; cellulee minutule subrhombez, incrassate, pulchre pel- 
lucidze, inferiores sensim majores. 
Foliola imbricata, } folium superantia, late rotundo-cuneata-obovatave, 
retusula, repandula integerrima, a basi ultra medium canaliculata. 
Flores monoici: 2 creberrimi, seriatim secundi, terminales,—ex inno- 
vationibus quasi-laterales. Bracteze foliis majores recurvo-falcate, 
ad 2} bilobze; lobus oblique obovato-ovalis rotundatus incurvo- 
canaliculatus; lobulus fere eequilatus, dimidio brevior, subrotundus 
vy. late oblongus, subrevolutus, apice lato insigniter obcordato-emar- 
ginatus: bracteola obovato-lanceolata oblongave, duplo longior quam 
lata, retusula, marginibus plus minus revolutis. 
Perianthia subimmersa obovata triquetra, apice subobcordato brevissime 
rostellata, carinis valde compressis exalatis, raro obsolete alato- 
repandis. Capsula globosa 4-partita vix exserta. 
Amenta ¢ ramulis propriis constantia, folio caulino plus minus longiora, 
plerumque 2 v. 3 ad cujusque innovationis primariz basin fasciculata, 
polyphylla, julacea, decurva; bracteze parvee usque ad 20-jugee. 
The stems and branches sometimes mnovate as often as ten times, each 
