460 15. NECKEREÆ. [ Porotrichum. 
operculo subulato longirostro, peristomii dentibus processibusque elongatis 
angustis. 
P. stolonaceum, Hampe in Linnea, xxxii. 154. 
Hab. Columbia, Funck et Schlim. Andes Bogotenses, Lindig, ad viam 
inter Tipaquira et Pacho (6000 ped.), ad arbores, Weir, n. 248 ; in sylvis 
prope Tequendama (7500 ped.), Weir, n. 308; ad viam inter Villeta et 
Bogota (8000 ped.), ad truncos et radices arborum, Weir, n. 415. Andes 
Quitenses, Quito, Jameson ; in montibus Pichincha (10,000 ped.), Spruce, 
n. 1350; Tunguragua (8000 ped.), Spruce, n. 1351. 
Rami 3-8-unciales, superne in frondem interdum regulari modo decres- 
centi-pinnatim ramosam divisi. Folia viridia, flavescentia. 
The description given by Hampe of P. stolonaceum appears to 
accord very well with this species, excepting that he says there 
are solitary short cilia. 
2. P. scoposuM (Hampe in Ann. Sc. Nat. ser. 5. iv. 3/4). Surculus repens 
purpureo-tomentosus ; caulis adscendens, basi microphyllina subnudus, hu- 
milis, superne ramosissimo-flabellato-dendroideus, ramis crassioribus cum 
filiformibus mixtis, scoposo-congestis. Folia caulina basi obliqua, con- 
cava, apice denticulata, nervo lutescente superne evanido, cellulis basi- 
laribus striatis luteis, ezeteris anguste pentagonis brevibus in acumine 
laxioribus angulato-ellipticis interstitiis crassioribus cinctis; folia ramo- 
rum angustiora, ovato-lanceolata vel lanceolata, versus apicem plus minus 
inciso-serrata vel spinuloso-denticulata, nervo abbreviato furcato demum 
subevanescente; perichetialia obovata, subito longe acuminata, apice 
parce denticulata, subenervia, cellulis basi laxioribus hyalina. Seta un- 
cialis, fuscata, apice incrassata. Theca oblique ovato-elliptica, operculo 
elongato conico-subulato rostrato thecam subzquante ; peristomium du- 
plex, annulo cinctum, externum dentibus lanceolato-subulatis flavescenti- 
bus integris incurvis, internum ciliis late carinatis, pyramidatis, pallescen- 
tibus, superantibus.— Hampe, l. c. 
Hab. Andes Bogotenses, Guadelupe (2900 metr.) inter frutices, Lindig. 
P. longirostro Brid. ex habitu simile, sed ramis scoposo-congestis nec 
pinnatis primo visu recognoscitur.— Hampe, l. c. 
3. P. NrrIDUM (Hampe in Ann. Sc. Nat. ser. 5. v. 340, Pilotrichum). 
Surculus repens stolonifer; caulis humilis, biuncialis, adscendens, dendroi- 
deus vel irregulariter pinnatus, basi nudiusculus, stipite squamuloso, fronde 
pinnata, vel arbuscula radiis 2-3 divisa pallide flavescenti-nitida, ramis 
subdistiche pinnatim dispositis attenuatis, dense foliatis. Folia indistincte 
imbricata, cymbiformi-concava, apice parce denticulata, hyalina, nervo 
aureo basi crassiore supra medium attenuato evanescente, basi subtruncata 
parum vel vix auriculata, cellulis basilaribus anguste ellipticis condensatis 
aureis, cxteris hyalinis brevibus linearibus, in apice folii ellipticis parum 
incrassatis.— Hampe, l. c. 
Hab. Andes Bogotenses, Tequendama (2500 metr.) in sylvis, Lindig, 
