182 TRACHY-LEJEUNEA 
latee; bracteola oblonga subacuta integra minute denticulata. Per. 
immersa pytiformi-oblonga supra medium 5-carinata, carinis papil- 
losis. 
1, TRACHY-LEJEUNEA ACANTHINA, Spruce. (Tas. VI.) 
Hab. In Andium Peruvianorum montibus humilioribus circa oppidum 
Tarapoto, alt. pease supra saxa et truncos prostratos. 
F 6x °35, lob 153; ¢ fe3 f*°5x'5; br 9; br’ “65x °7 5 per boxeboaes 
Plant procumbentes, dense implexo-ceespitosze, albicantes, in sicco inter- 
dum fuscescentes. Caules 3-}-pollicares flexuosi ineequaliter sub- 
pinnati, basi sola radicelliferi, ramis assurgentibus arcuatis. 
Folia opaca, dense imbricata, late patula fere divergentia, apice fornicato- 
decurva, oblique ovalia oblongave acuminulata, apice inzequaliter 
dentato-spimosa, v. inciso-2-3- -dentata, dentibus cuspidatis, basin 
versus sinuato-complcata, facie tuberculoso-aspera, margine toto 
celluloso-erosa; lobulus 4-plo brevior ovatus inflatus, apice exciso- 
acutus; cellule parvulz subopace parum elongate, insigniter papu- 
loso-prominule, ad angulos valde incrassate, trigonis maximis, 
chlorophyllo parco cum cystis oleiferis curvulis anguste ovalibus 
raro subrotundis—in sicco interdum absorptis dispersisve—mixto. 
Foliola imbricata foliis parum breviora, latiora tamen superficieque foliis 
etiam majora, cordato-orbiculata, ultra 3 biloba, lobis acutatis; mar- 
gine toto externo dentato-spinosa, spinis utrinque sub 5, integerrimis 
vel szepe denticulatis. 
Flores dioici: 2 in ramo brevi longioreve terminales, innovatione nulla 
suffulti. Bracteze foliis dimidio longiores ad 4 complicato-bilobe, 
falcato-decurvee, lobo oblique ligulato-oblongo acuminato apice spinu- 
loso, lobulo parvo subulato spinuloso; bracteola foliolis paulo major, 
conformis, fere ad $ biloba, lobis tenui-acuminulatis, subduplo inciso- 
spinosa-ciliatave. 
Perianthia bracteola paulo minora, fere orbiculata, utroque fine subacuta, 
apice brevi-rostellata, basi paulo magis angustata, valde compressa, 
alte tamen 5-plicato-carinata, carinis ‘fere levissimis solum e cellula 
hic illic prominula repandulis. 
Amenta ¢ ramulum, folio caulino duplo longiorem, v. totum vy. ejus 
apicem solum tenentia, ovoidea; bractese 2— 4. -jugee, equitantes, cymbi- 
formi-complicatie, fere ‘add bilob, lobis dimicdiato-ovatis, antico sensim 
acuminato serrulato, postico + breviore triangulari-apiculato, anthe- 
ridia bina in gremio foventes. 
Obs. Notabilis est Trachy-Lejeunea acanthina ob perianthia fere levis- 
sia inermiaque foliis asperrimis spinosis nupta.  Foliolis maximis 
spinosis differt a ceteris omnibus Trachy-Lejeuners. Omnium specierum 
nostre proxima, quanquam abunde distincta, est L. papillata Mitt. in 
Hook. f. Handb. Fl. N, Zealand, p. 533, cujus descriptionem videas ad 
pedem.* 
* Lejeunea papillata Mitt. 1. c. (N. Zealand, ad filicum frondes: SrncLamn! 
in hb. Hook.)—Pusilla tenella, Z. ovata Tayl. paulo major. Caules semi- 
pollicares vage ramosi, ramis pro more brevibus. Folia subcontigua dimidiato- 
ovato-lanceolata falcata obtusa vel abrupte subacuta, margine facieque externa 
tota fere insigniter setoso-papillosa, sinuato-complicata; lobulus lobo plus duplo 
brevior ovali-fusiformis lwvissimus; cellule parvule extus subulato-prominule, 
paucwe subbasales laxiores subplane, lobuli autem minores planissime. Foliola 
4 folium vix equantia, ovalia ad medium bifida, segmentis acutis, margine 
