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MOUNT RORAIMA IN BRITISH GUIANA. 907 
apice recte truncata ut in ala longe spinosa, spinis ut in folio sed magis confertis. 
Folia floralia caulinis simillima. Andrecia in caule terminalia, longe spicata, 
spicis ad 2 vel 3 subfasciculatis erectis; braetes ad 16 juge, e basi longe saceata 
parum recurvo-patule, apice truncate et paucidenticulate. 
Roraima, Ledge, 7500-8000 ft., McConnell & Quelch, 334/9 in part. 
In Plagiochila superba, Wahlenb., the leaf-cells are much larger, the spines very stout, 
very much longer and less numerous. ` Lindenberg says (Monogr. Plag. p. 80) that Sieber 
had given him this species as coming from Australia; but this is a mistake of Sieber, 
who had not marked his packets and did not know on his return whence he had 
procured the plants; many errors of the same kind have been previously pointed 
out by me. 
16. PLAGIOCHILA REMOTIFOLIA, Hampe & Gottsche in Linnea, xxv. (1852), p. 340. 
Roraima, Ledge, 7500-8000 ft., MeConnelt & Quelch, 334/3. 
Pretty common in the West Indian Islands. 
17. PLAGIOCHILA RUTILANS, Lindenb. Spec. Hep. ii. & iii. (Monogr. Hep. Gen. Plag.) 
p. 47. 
Roraima, Ledge, 7500-8000 ft., McConnell § Quelch, 334/2 in part. 
Common in Tropical America. 
18. Lxroscyrnvus FRAGILIS, J. B. Jack & Steph. in Hedwigia, xxxi. (1892), p. 20. 
Summit of Roraima, Jc Connell §& Quelch, 524 in part. 
Also in New Granada. 
19. LOPHOCOLEA BREUTELIT, Gottsche, in Syn. Hep. p. 154. 
Roraima, Ledge, 7500-8000 ft., McConnell & Quelch, 334/14 in part. 
Common in the West Indian Islands. 
20. MASsTIGOBRYUM RORAIMENSE, Steph., n. sp. .Dioica, mediocris, apice dilute flavo- 
virens, inferne brunneola, erecta, laxe intricata. Caulis ad 4 cm. longus, repetito 
furcatus, postice flagellis numerosis capillaceis instructus. Folia conferta, valde 
decurva, in plano subrecte patula, oblonga, parum falcata, antice parum ampliata, 
caulemque haud superantia, apice triplo angustiora quam basi, acute bidentula sinu 
lunato parum profundo vel truncata, angulis acutis. Cellule foliorum magne, 
apice 27 p, trigonis maximis contiguis vel late confluentibus, medio infero multo 
majores, 37-56 u, inerassatio parietum grosse trabeculata. Amphigastria caulina 
caule triplo fere latiora, imbricata, transverse inserta, late obeuneata, tertio supero 
inciso biloba, lobis similiter sed brevius bilobis; cellule amphigastriz caulinis 
simillime, parum minores. Folia floralia quadrijuga, intima caulinis æquilonga, 
profundissime bifida, laciniis late lanceolatis, marginibus externis crenatis vel 
crenato-dentatis, internis subintegerrimis. Amphigastrium florale foliis suis quale. 
Perianthium (juvenile) ore longe fimbriatum, ciliis triangulariter artieulatis hie 
ilie ramosis. Reliqua desunt. 
Summit of Roraima, McConnell & Quelch, 523. 
SECOND SERIES.—BOTANY, VOL. VI. 
