MARCHANTIA. 561 
3. MARCHANTIA SUBANDINA, Spruce. 
Hab. In Andium Peruvianorum radicibus, juxta fl. Huallaga cataractas, 
in solo nigro tenaci, ubi sub graminum umbra plagas latas format. 
Pedunculus 20-30; capituli diametros 3-4; pedicelli 15; perranthia 1:0; 
capsule 0°5-0'7 ; elateres O°5™, 
Pusilla, luride viridis, apice purpurascens, prostrata substratificata. 
Frondes 4°™ longze, 2-3™™ late, lineares, subplane, iteratim ime- 
qualiter dichotome, apicibus subemarginatis, tenuiculie, supra elon- 
gato-areolat stomatophore, subtus medio pallida, margines versus 
colorate. Costa tenuis, subtus canali, fasciculum vasculorum crassum 
obtegente, percursa. Paleze hypophylle utrinque Liseriate, rose, 
tenuissime, late oblique subfalcato-oblonge, ex apice rotundato 
appendiculate, margine serrato-denticulatee. 
Flores dioici et monoici: Q terminales. Pedunculus elongatus striatus, 
ramentis paucis angustis, basalibus sublatioribus, obsessus, 3-canali- 
culatus. Capitulum parvulum subexcentricum, parum convexum, 
profunde 9-fidum, lobis lineari-cuneatis emarginatis, subtus palea- 
ceum. Paleze copiose roseze, pedunculi apicem necnon involucra 
obvelantes, forma varie, plereeque lanceolato-subulate, flexuosze 
laciniate. Involucra tot quot lobi, cum iisdem alternantia, duplo 
breviora, tenuia bivalvia, margine repanda, triflora, flore unico (raro 
altero) fertili. Perianthia late pyriformia tenuissima, apice inequa- 
liter 5-fida. Calyptra inclusa pyriformis tenuissima, infra apicem 
rupta. Capsula in pedicello calyptram paulo superante parvula 
globosa, rufa tenuis, cellulis unistratis intus trabeculatis conflata. 
Elateres elongati utrinque attenuati monospiri. Spore mediocres, 
tetraedro-globose, fulvee, scaberule. 
Capitula ¢ feemineis similia, ad centrum tamen fere usque fissa; lobis 
paucioribus (sub 6), linearibus crassis, subtus squamis purpurcis 
arcte imbricatis vestitis. Antheridia haud inveni. 
M. Berteroana L. et L., et M. papillata Raddi, huic subaffines, e descrip- 
tionibus distinctissime viderentur.—M. subandina ex elateribus mono- 
spiris inter congeneres singularis. 
4, MARCHANTIA CHENOPODA, Linn. Sp. Pl. II., 1603. 
Hab. In terra humida umbrosa, ad rivuli ripas precipue, necnon in 
tupibus saxisque humectatis, per Andes sylvaticos inferiores, vix 
supra 2000™ ascendens, sat frequens; in planitie calida nullibi visa. 
Insulis Antillis, necnon in Brasilia centrali australioreque antea in- 
venta fuit. 
Frondes 30-40 x 4—-5™™; areole 1™™ longe; palee 13x11; br 25x20; 
ped gomm, 
Sordide viridis, siccando albescens, subtus rubro-purpurea, substratificata. 
Frondes ter dichotome, ligulate vel cuneato-lgulate, apice emar- 
ginato-bifidee, margine repando-crenulatz ; supra subplane, insigniter 
tesselato-venose, areolis suboblongo-5—7-gonis, poris magnis albo- 
marginatis; medio sat crasse, pluristratee (costa autem vix definita), 
deinde ad margines sensim attenuatze, cellulis stratorum superiorum 
densis opacis, strati hypopori cavernis plerumque binatis. Radicellee 
pallidee praelongz creberrime, frondis apices versus autem deficientes. 
