554 BULLETIN DE L^HERBIER BOISSIER. (8) 



17. Leptotrichum pseudo-rufescens n. sp.; dioicum; cespites 

 lati viridissimi laxissimi teneri; caulis pusillus, inferne nudiusculus 

 superne comosus, simplex vel apice pluries in ramulos brevissimos 

 divisus; folia longa angusta crispata, madore erecta, e basi angustis- 

 sime vaginata recta in laminam subulalam plus minus elongatam 

 flexuosam integerrimam attenuata recurviusculo-patula. nervo cras- 

 siusculo subulam usque ad summitatem extremam 2-3-dentatulam 

 omnino occupante exarata; perichsetialia similia parum majora ; 

 theca in pedunculo elongato flavo tenuissimo erecta plus minus 

 longe cylindrica angustissima vix arcuata fusca nitida, operculo recte 

 subulato, annulo persislente angusto; peristomium longiusculum 

 slrictum dentibus bifidis rubris. 



Habitatio. Jamaica, prope plantationes Cinchonae, alt. 4900 et 5200 pedura 

 et Morces Pass alt. eadem, 24 IV 1896 : W. Harris in Hb. Jamaicensi N 10,036 

 et 11,009. 



A Leptotricho rufeseente Hpe. Andino theca angustissime cylindrica primo 

 visu distinctum. Flos masculus minutissimus in planta simplice minuta termi- 

 nalis. 



18. Angstromia (Weisiella) Harrisi n. sp.; dioica; cespites lati 

 humiles horridi virescentes; caulis pusillus simpliciusculus vel parce 

 stolonaceus; folia caulina paululo homomalla siccitate atque humore 

 palula breviuscula, e basi latiore vaginata in laminam subulatam 

 parum curvatam inlegerrimam canaliculatam attenuata, nervo cras- 

 siusculo virente subulam omnino fere occupante percursa, e cellulis 

 minutis quadratis basin versus mullo longioribus rectangularibus 

 basi majoribus laxioribus viridissimis areolata ; pericheelialia majora ; 

 theca in pedunculo breviusculo flexuoso madore recto flavo tenui 

 minuta erecta anguste ovalis basi indislincte slrumulosa, operculo 

 conico-subulato obliquo, calyptra dimidiata glabra. Peristomium? 



Habitatio. Jamaica, Blue Mountains Peak, 7420 ped. alta, in solo, 31 Martio 

 1896 : W. Harris. Hb. Jamaicensa N<> 10,068. 



Fructum immaturum solum vidimus, sed dicranoideus certe erit. 



19. Angstromia (Euangstromia) Jamaicensis n. sp.; caules 



gregarie cespitulosi pollicares tenuissimi simplices vel apice vix bre- 

 viter ramosuli ascendentes lutescenti-virides nitidi flexuosi; folia 

 caulina arcte appressa surculum angulatum in axi crassiusculo tereli 

 distantia parva, inferiora minuta apicem versus longiora : illa chrysea 



