560 MARCHANTIA., 
Scyphi obconici alte emersi, margine grosse serrati, extus minute papil- 
losi puberulive; solum in pl. ¢ visi. 
Eandem speciem, pedunculo longiore brevioreve ludentem, in plurimis 
lovis Andium Quitensium legi: sc. Lezto, ditione Ambatensi, in palude, 
cum fr.; ad cataractee Agoydn rupes, pl. ¢; altera forma in ejusdem 
fluvii Pastasa ripis, brevipedunculata, frondibus subtus insiyniter crebri- 
usque lamellosis; altera in rupibus ad fzo Verde fl. Pastasa affluentem, 
cum fructu. 
Obs. Capilliform dotted ducts (of the same calibre as the radicles, 
which are not dotted) stretch in fascicles, simulating veins, from the mid- 
rib on each side to the margin, parallel to the arcuate rows of lamelle 
and usually alternating with them; others not fascicled spread like 
venules in the interspaces. The frond is spotted beneath with numerous 
green dots, and from these the ducts seem to originate; as they certainly 
do in the scales of the male capitula, where they arise from submarginal 
dots and tend downwards, to the base of the scale. 
As I have seen no specimen of M. plicata, and only the barren plant 
is briefly described in ‘Synopsis Hepaticarum,’ I cannot be sure of its 
identity with my plant. If, however, it is really the same, then the name 
is not a happy one, for the fronds are only apparently (not really) plicate 
beneath, from the rows of paleze, running obliquely from the midrib on 
each side to the margin, projecting in ridges when dry. M. plicata is 
said to have the frond “subtus pilosula .... margine cartilagineo- 
denticulata,” in neither of which characters does it accord with my plant. 
M. lamellosa Hp. et G. agrees with it in the 1l-radiate calyptra, but 
differs essentialty in the ‘fronde crassiuscula canaliculata . . . . squamis 
marginalibus ovato-rotundis . . . pedunculo nudo.” 
2. MARCHANTIA POLYMORPHA, Linn. Sp. Pl. II. 1603. 
Hab. in palude thermali ad pedem montis Tunguragua; etiam per 
Andes Quitenses in terra volcanica (exusta) preecipue, seepe Funaria 
hygrometrica consociata, haud infrequens. 
Frons ad 10™™ lata; ped 20; capit 10; wmvol 1:5 x 2:0™™, 
Frondes 2-3°™ longi, dichotomi, lineares vel oblong, media costa 16 
cellulas, pagina juxta costam 8c., margine 4c. crassa, supra sub- 
elongato-areolatie, areolis pallide, interstitiis saturate viridibus, poris 
magnis albido-marginatis; subtus radicellosse et paleaceee ad M. 
plicate instar, paleis autem paucioribus et latioribus. 
Pedunculi paleis filiformibus flexuosis plus minus pilosi. Capitula pro- 
funde 10-radiata, radiis decurvis involucra brevia longe transeunti- 
bus. Valvulee involucrorum latiores quam long, margine profunde 
laciniate, laciniis rufis subulato-acuminatis laciniolatis. Pistillidia 
in involucri fundo conferta, ad rhachin brevem disticha, sub 6 paria, 
basi brevi globosa, stylo longo tenui terminata, paleolis (bracteis) 
paucis parvis multipartitis circumdata. Czetera deerant. 
Seyphuli medio lobo solitarii, majusculi, infundibulati, limbo lato patulo 
profunde crenato-serrato, crenulis apiculatis subspinulosis, extus 
puberuli. 
A stirpe vulgari Europea haud omnino distinguenda. 
