146 ODONTO-LEJEUNEA. 
2. OponTo-LEJEUNEA CALCARATA, Mont. (?) 
Phragmicoma calearata, Mont. Ann. Sc. Nat., 1843, p. 261 (2); Lejeunea 
lunulata y calearata, Syn. Hep. 326. Odonto-Lejeunea chelidonura, 
Spruce Mst, 
Tab. In sylva Amazonica, precipue secus fluvios Negro et Bombonasa, in 
foliis vivis, raro in cortice. In Andibus ad 1200™, alt. ascendit 
supra M. Campana. 
F 14x 1-25, lob ‘6 altus, 35 latus (ad plicam), c 33; f'* °85x ‘8 (calcaria 
35); br 95 br’? -75x°8; per 1°35 x 1:05™™. 
Majuscula rufo-badia prostrata arcte adrepens, Caules 1-2-pollicares 
vage ramosi, vel in plagule ambitu distanter subpinnati, plerumque 
sparsi, raro in densum stratum intexti. 
Folia magna ad + lat. imbricata, angulo recto divergentia, subplana— 
siccando sepe recurvo-crispula, late oblique ovata oblongave, fere 
dimidiata, apice rotundata vel superiora acutiuscula, margine toto, basi 
antica lata caulem transeunte excepta, argute serrato-vel spinuloso- 
dentata, dentibus «equidistantibus, 2 supra plice apicem ceteris seepe 
majoribus, margine infero a medio incurva basinque versus sinuato- 
complicata; lobulus plus 2-plo brevior subplanus et appressus anguste 
ovato-trapezoideus, basi (i.e. plicé) recta subtransversd, axi cauli 
parallel, acuminulatus ssepeque apice 1-vel pauci-dentatus; cellule 
majuscule subconformes hexagons, trigonis ad angulos conspicuis. 
Foliola foliis vix duplo minora cuneato-orbiculata, toto margine distanter 
dentata spinosave—quasi polygona, angulis in dentem productis— 
basi profunde sagittato- (rarius hastato-) bifida, se. utrinque in calcar 
prelongum acuminatum deorsum protracta. 
Flores dioici: Q in ramis primariis terminales, innovatione simplice pro- 
liferave suffulti. Bractez foliis longe breviores ovate ovalesve acute 
spinulos, basi ipsa anguste sinuato-complicate (vix lobulate); 
bracteola subrotunda concava spinulosa. 
Perianthia folium caulinum subzequantia, cuneato-oblonga truncata—vix 
obeordata, longirostria (rostello apice spinuloso), valde compressa, 
antice depressa, postice obtuse carinata, margine fere a basi late 
alata, ala superne arcte spinoso-serrata-ciliatave (sine spinis 3-5- 
cellulas lata). 
Andrecia ramos terminantia spiceeformia; bracteze plurijuge haud con- 
fertz, foliis 2-3-plo minores, ovales, acute serrate, ad 4 bifidee, lobulo 
arcte involuto anguste fusiformi antheridia bina fovente. 
Ad rivulum Cauapuna prope 8. Carlos, in foliis, formam legi minorem, 
magis ramosam, pinnatam sterilem, foliis equaliter argute dentatis, lobulo 
rhombeo; foliolis profunde (fere inciso-) dentatis, calearibus baseos pre- 
longis, c#eterum foliolum subeequantibus, rectis vel paulo divergentibus. 
Juxta fl. Bombonasa, in folio, aderat forma elata, tripollicaris, rufo- 
fulva, inequaliter pinnata bipinnataque, foliis magnis magis divergenti- 
bus; perianthiis crebris pro planta parvulis, apice demum bilabiatis, labio 
postico subinde ad carinam hiante. 
Eodem loco, in cortice, aderat altera forma, vage ramosa, foliis fere tam 
Jatis quam longis, semicordato-ovato-rotundis, minus argute dentatis ; 
foliolis prelatis margine polygonis—angulis submuticis—solum basin 
versus paucispinis, calcaribus prelongis margine interno (juxta caulem) 
dente reflexo auetis; perianthiis parvis folia haud excedentibus; cum 
