264 musci novi. 



Caulis 7 cm. altus, nudus. Folia a basi breviter amplexicauli 

 patentia subulata, apice capillari, flexuoso, serrato, 1 cm. longo. 

 Cellulae alares quadrate, fulvae ; basilares elongate, poris connexze ; 

 marginales angustissiinae, elongatae, hyalinse ; reliquae parvae quad- 

 rat ae crassse marginatse. Fructus ignotus. 



Hab. Zanzibar. Legit J. T. Lttst. 



Holomitrium acutum C. H. Wright, sp. n. — Folia longiora 



acutioraque quam in H. vaginato, Brid., apice solum serrata. 

 Capsula cylindrica, brevis; seta elongata. 



Caespitosum. Caulis 1*5 cm. altus, rubido-tomentosis, inno- 

 vationibus dichotomis ramosus. Folia lanceolata acuta, recurvata, 

 apice serrata, sicca plus minusve crispata ; cellule quadratse, basilares 

 elongatae; nervo sub apice evanido. Perichaetialia quam caulina 

 duplo longiora, convoluta ; cellule elongata nisi ad apicem ; 

 nervo excurrente. Vaginula ruberrima. Seta 1*5 cm. longa. 

 Capsula cylindrica, erecta, 3 mm. longa. Peristomium infra ore 

 capsulis ortans ; simplex, dentes sedecem. 



Hab. Dzomba, Zambesi, 6-7000 ft. Legit Sir John Kirk. 



Allied to H. Olfersianum, which has serrate leaves, and a shorter 

 seta and capsule. 



Endotrichum lanceolatum C. H. Wright, sp.n.— E. plicato 

 Dozy et Mlkb. affinis, sed foliis angustioribus, cellulis elongatis 

 compositis, differt. 



Rhizoma repens; rami erecti, 4 ad 5 cm. longi. Folia flavo- 

 virescentia, lanceolata, acuminata, margine sparse serrata ; cellule 

 vermiculares. Perichaetialia quam caulina multo minora, ovata, 

 acuta, membranacea. Capsula cylindrica, obscure fulva ; seta brevis. 



Hab. Trusan River, Borneo. Legit G. D. Haviland. 



Pterogonium deoipiens C. H. Wright, sp.n.— Caulis repens, 

 irregulariter pinnatini ramosus ; rami erecti, tenuissimi, 5 cm. alti. 

 Folia imbricata, suborbicularia, acuminata, obscure binervia; 

 cellule basilares marginalesque ovales, centrales apicalesque 

 elongatae. Folia perichaetialia elongata, enervia. Seta gracilis, 

 1-5 cm. longa. Capsula inaequalis, inclinata, 02 cm. longa. 

 Peristomium duplex, exterius dentibus sedecem subulatis, interiore 

 dentibus sedecem interius dimidio coalitis. 



Hab. Shiri Highlands, Zambesia. Legit J. Buchanan, No. 33. 



A slender species, forming dense tufts, and much resembling in 

 appearance a Microthamnion. 



Pterogonium abruptum C. H. Wright, sp.n.— Folia abrupte 



acuminata, non serrata. Capsula duplo longiora quam lata. 



Caulls repens, irregulariter pinnatim ramosus, rami erecti, 

 V5-Z cm. alti, julacei, Folia dense imbricata, ovata, abrupte 

 acuminata, marginibus integris ; cellul® alares ovales, reliquas 

 plus minusve elongate. Folia perichaetialia anguste lanceolata, quam 

 caulina duplo longiora, membranacea ; celluhe omnes elongate, 

 beta 1-5 cm. longa, spiraliter torta siccata. Capsula erecta, 

 cylindrica ; peristomium duplex, exterius dentibus sedecem trans- 

 verse ragosis, interius membranaceus, cilia sedecem. 



Hab. Shin Highlands, Zambesia. Legit J. Buchanan, No. 32. 

 Urowmg in dense patches. 



