HEPATIC^ COLLECTED IN CEI^TRAL AERTCA. 309 



HOOKEEIA, Sm. 



(§ Callicosta) veesicolob, Mitt. — Lepidopilum, Mitt. 



Journ. Linn. Soc, vii. p. 159. 

 Hah. Kilimariiaro, Bishov Hi 



H. Langsdorjl 



the Indian H. TJtacamundiana as well as the Javan H, macropm, 

 G-reat difficulty arises in the comparison of specimens of the 

 species of this group from the uncertain manner of their revival 

 by maceration in water after having been dried ; in some the cells 

 refuse to expand at all, and thus the areolation may appear 

 completely different from what ifc was in the living moss. 



The Hookeria (§ Lepidopilitiii) angolensis, Duby, Mem. de la 

 Soc, de Phys. de Geneve, torn. sxi. (1872), seems to be the same 

 species, which differs from _ff. Pappeana, Hampe, Ic. 11, in its 

 undulated and shining leaves when dry and its more narrow 

 areolation. Eras:ments which anoear to belonir to H. Pavveana 



Mo 



Lepidopilfm, Brid. 



L, Hankingtoni, sp. n. Monoicum ; caulis subsimplex; folia 

 distichacea media intermediaque ovato-oblonga lateralia patentia 

 longiora omnia subulate acuminata, margine superne serrulata, 

 limbo nuUo, cellulis elongate oblongis nervis binis medio evanidis, 

 perichsetialia parva ovato-lanceolata ; theca in pedunclo brevi fere 

 laBvi ovalis, peristomii dentibus lamina ex terna rubra supra 

 totam latitudiuem laminse internse hyalinae protracta, processus 

 sequilongis in membrana brevi exserta insidentibus ; calyptra 

 parva sublsevis. 



Hai. TJsagara Mountains, Bishop Hannington. 



Caulis unciam altus cum foliis explanatis 3 mm, latus. Folia 

 subnitida, stramineo-viridia plus minus rubescentia. 



L. Lastii, sp. n. Monoicum ; caulis subsimplex ; folia disti- 

 chacea compressa media intermediaque ovalia lateralia longiora 

 oblonga omnia apice subacuminata acuta marginibus versus 

 apicem serrulatis, Umbo nullo, cellulis oblongo-elongatis, nerris 

 brevibus, perichsetialia parva late ovala acuminata ; theca in 

 pedunculo brevi setulis densis obtecto ovalis erecta papulose 

 aspera operculo acuminato, peristomii dentes elongati, lamina 

 externa rubra angusto \ tantum lutitudinis lamina? interna tegens, 



