464 15. NECKERE®. [ Porotrichum. 
14. P. vaRIABILE (Hampe in Ann. Sc. Nat. ser. 5. iv. 375). Rami bipin- 
natim ramosi. Folia disticha, compressa, planiuscula, striis paucis longitu- 
dinaliter notata, marginibus inferne incurvis, fere toto ambitu minute crena- 
tis, apice denticulatis, nervo ultra medium producto, cellulis elongatis angus- 
tis apice paucis ellipticis; ramulina angustiora, ulteriora minus compressa, 
acutiora; perichetialia breviuscula, interiora e basi erecta oblonga, subito 
subulata, recurva. Theca in pedunculo ea duplo longiore, ovalis, inclinata, 
operculo subulato curvirostrato ; peristomium illi P. longirostri simile. 
Neckera flabellata, Hampe in Linnea, xxxi. 525. 
Hab. Andes Bogotenses, in sylvis super Pacho (6000 ped.), ad truncos 
ramosque arborum copiosum, Weir, n. 132. 
Rami 3-unciales proliferi, in frondem planiusculam expansi. Folia 
viridia, subnitida. Pedunculus 1}-linearis, apice curvatus. 
15. P. NECKERHZ FORME (Hampe in Ann. Sc. Nat. ser. 5.v. 309, Hypnum). 
Monoicum, robustum, inferne nudum, fuscum, glabriusculum vel parce 
squamis hyalinis obtectum, superne flabellato-distiche ramosum, elatum, 
spithamzeum ; ramis simplicibus vel pinnatis obtusioribus, superioribus atte- 
nuatis, elongatis, rufescenti-viridibus, parum nitentibus. Folia inferiora late 
ovata, acuta, integerrima, enervia, lateralia ramorum e basi obliqua, uno 
latere inflexa, late ovato-ligulata, apice denticulato-serrata, nervo rufescente 
supra medium evanescente, cellulis linearibus, nodulis punctatis adspersis, in 
acumine foliorum abbreviatis laxioribus angulato-ellipticis, tota flavescenti- 
diaphana; perichztialia pallescentia, laxe imbricata, exteriora reflexa bre- 
viora, interiora longiora erecta, oblongo-ovato-lanceolata, longe acuminata, 
integerrima, subenervia, cellulis laxioribus elongatis pellucida. Seta glabra, 
brevis, perichetium duplo superans, rubra. Theca subinclinata, turgida, 
ovata (deoperculata); peristomium breve, externi dentibus late lanceolatis, 
acuminatis, dense trabeculatis, solidis, interni membrana producta carinata 
flavescens, cruribus lanceolatis carinatis remote trabeculatis, ciliis basi bi- 
cruribus elongato-filiformibus.— Hampe, l. c. 
Hab. Andes Bogotenses, Choachi (2600 metr.) in sylvis, Lindig. 
Compared by Hampe to P. fasciculatum; but of its affinity to 
P. variabile, from which in its description it scarcely differs, he is 
silent. 
16. P. ixsuLARUM (Mitt.) Rami elongati, stipite basi foliis acumi- 
natis patulis, superne laxe pinnatim ramosi. Folia compressa, lævia, late- 
ralia patentia, nervo ultra medium evanido, marginibus apicem versus ser- 
rulatis; ramulina conformia, cellulis elongatis angustis. 
Leskea angustata, Tayl. in Trans. Bot. Soc. Edinb. iii. 23? 
Hab. Ins. Dominica, M'Imray; Martinique, ex Herb. Schimper ; Gua- 
delupe, Perrottet. 
Rami 3-4 uncias alti, ramulis longioribus fere uncialibus ramosi. Folia 
e rami primarii medio lineam longa, in omnibus speciminibus fulva. 
Omnino hujus gregis est Leskea angustata Tayl., e fragmentis ramorum 
