402 



MUSCI. 



Variat colore fuscescente foliisque raadore minus patentibus. 

 Folia siccitate incurvatim tortilla. Perichsetialia exteriora 

 conformia, interiora oblongo-lanceolata cuspidato-acurninata. 

 Vaginula cylindracea angusta, ubipue paraphysibus plurimis 

 hyalinis, summis longissimis, basinque versus pistillis pluribus 

 obsita. Capsul6e os incrassatum, lucidum, sulcatum. Dentes 

 Dentes peristomii pallidi, albidi, vix per paria approximate, 

 lineis compositionis incouspicuis. 



Sporula magnitudine summopcre varia, opaciuscula. 



1. Casule and calyptra. 



2. Capsule and operculum. 



3. Capsule and operculum remaining attached to the ex- 

 serted point of the columella. 



4. Apex of capsule. 



5. Portion of capsule and peristome seen internally. 



6. Sporula. 



7. Operculum, 



8. Compound hair. 



9. Cauline leaf. 



10. Perichaetial leaf. Ass. 521. 



3. Orthotrichum assamicum, Gr. PI. LXXVII. Fig. II. 



Caule repente, foiiis lanceolato-linearibus subcarinatis ascenden- 

 tibus siccitate iucurvatis contortisque, capsula anguste cylin- 

 dracea, peristomio simplice, calyptra villosa. 



Hab: In arboribus versus Negrogam et in agro "Muttack" 

 dicto, regionis Assamicae altae; atitudine supra mare circiter 

 600 pedum. 



Csespitosum, ramosum, rami breves ascendenb&a. Folia recti- 

 uscula, integerrima, marginibus leviter recurvis, prsedita vena 

 crastiuscula in apiculum brevem mucroaiformem excurrente, 

 inconspicue areolata. 



Perichcetialia interiora, fere membranacea, subconvoluta, cuspi- 

 dato-acuminata, solidivenia. 



Seta ob innovationes lateralis, vix semuncialis, brunnea, sicca 

 spiraliter torta. Vaginula cylindracea. Paraphyses pluriinse, 

 summae longissimae. Pistilla pauca longiuscule pedicellata. 



