(43) G. MÜLLER. BRYOLOGIA GUATEMALENSIS. 213 



118. Aptychus longicollis Hpe. in sched. 1868; monoicus; ces- 

 pites lad decumbentes lutescenti-virides intricati; caulis repens, 

 ramis brevibus curvulis simplicibus densiuscule aggregatis; folia 

 caulina parva vesiculose imbricata madore subpatentia, e basi 

 angustiore ovato-acuminata cucullato-concava enervia, cellulis ala- 

 ribus paucis (3) majusculis vesicularibus hyalinis ornata, e cellulis 

 elliplicis areolata ; perichsetialia similia longius acuminata; theca in 

 pedunculo longo tenui flavo-rubente parva inclinata, e collo cylin- 

 drica arcuala amblystegioidea, operculo e basi breviter conica in 

 subulam acicularem longiusculam producto; peristomium generis. 



Habitatio. Mazatenango, Coll. No 80, 136; Chilion, Coll. No 537. 



119. Aptychus semitortulus n. sp. ; monoicus; cespiles pulvinati 



lutescentes laxiusculi; caulis repens, ramis semipollicaribus cur- 

 vulis lumidiusculis simplicibus brevissime cuspidatulisdivisus; folia 

 caulina densiuscule imbricata madore patula, e basi angustiore cel- 

 lulis alaribus majusculis vesiculosis paucis chryseis ornata in lami- 

 nam anguste oblongo-acuminatam producta, acumine acutato semi- 

 lorto corona ta, margine e basi usque ad apicem auguste revoluta, 

 concava integerrima enervia; perichaetialia similia sed longius acu- 

 minata ; theca in pedunculo elongato tenero flavo-rubente minutis- 

 sima leviter inclina ta, e collo anguste obconica sub ore constricta. 

 operculo e basi cupulato-conica longe aciculari-subulato; peristo- 

 mium generis. 



Habitatio. Inter Coban et Gualân, Coll. N° 49. 



Prope Aptychum Galipensem, sed capsula minutissima jam ab omnibus con- 

 generibus distinctus. 



120. Sigmatella (Papillidium) Bernoulliana n. sp. ; cespites 



tenelli humiles lutescentes intricati; caulis pusillus, ramulis per- 

 brevibus simplicibus aptychoideis ; folia caulina laxe disposita 

 minuta humore patula, e basi brevissima constricta cellulis alaribus 

 vesiculosis chryseis paucis ornata in laminam anguste oblongo-acu- 

 minatam subcucullato-concavam integerrimam aculam producta 

 enervia, e cellulis minutis peranguslis breviusculis pallidissimis 

 pellucidis dorso folii tenuiter unipapillosis reticulata; perichsetialia 

 pauca minora angustius longius acuminata ; theca in pedicello pro 

 plantula Longiusculo tenui rubente nutans minutissima, e collo 

 brevi angustissime anguste cylindracea siccitale valde constricta 



