168 



RET. J. M. CROMBIE ON LICHENS 



Var. hypoclysta, NyL, with the receptacular margin sometimes subere- 

 nulated. On mossy rocks ; sparingly gathered. 



Parmelia constrict ans, NyL Sit P. conspersce subspecies, minor, 

 stenophylla, laciniis hinc inde constrictiusculis, h. e. attenuatis. 



On the ground towards the summit, apparently amongst detritus. 



Var. eradicata, NyL Satis insignis, minor, tenuior, laciniis ascendenti- 

 bus, etiam subtus glabris (rhizinis rarissimis vel obsoletis). 



On the summit amongst mosses. 



P. subconspersa, NyL in Flora, 1869, p. 293. 

 On rocks ; sparingly gathered. 



P. endomiltodes, NyL, sp. n. Subsimilis P. conspersce minori, sed 

 thallo medulla insigniter cinnabarina (K+, violascente). Apothecia 

 spadicea margine receptaculari subcrenato. Sporse longit. O'008-OOIO 

 niillim., crassit. circiter 0006 millim. Spermatia subbifusiformia, 

 longit. circiter 0006 millim., crassit. 0-0006-00007 millim. 



On rocks. 



P. conspersula, NyL, sp. n. Quasi P. conspersa parva, thallo adnato, 

 centro areolato-diffracto (vel subgranulato-areolato, nam areolae sub- 

 convexulae). Apothecia lecauorina (latit. 1*5 millim. vel minora), 

 margine thallino tenui integro. Sporse longit. 0007-0008 millim., 

 crassit. 0006 millim. Spermatia subbifusiformia, longit. 0005-0006 

 millim., crassit. 0-0006-0-0007 millim. 



On rocks associated with other lichens, sparingly, and rarely fertile. 



P. adherens, NyL, sp. n. Thallus stramineus, medio sordide lutes- 

 cens, crustaceo-adnatus, areolato-difrractus, areolis convexiusculus 

 (crassit. vel altit. circiter 0'5 millim.), ambitu effiguratus et subla- 

 ciniato-divisus, divisionibus planiusculis, contiguis subcrenatis ; apo- 

 thecia spadiceo-fusca lecanorina (latit. 0-5-07 millim.), margine thal- 

 lino integro cincta. Sporae ellipsoideae, longit. 0-009-0*01 1 millim., 

 crassit. 0-005-0*007 millim. ; paraphyses non distinctae. Iodo gelatina 

 hymenialis cserulescens, dein sordide lutescens. 



Species prope P. Mougeotii disponenda. Laciniae thalli margine summo 

 nigricante. Medulla K +, flavens. Spermatia tenuiter fusiformia, 

 longit. circiter 0*007 millim., crassit. vix 00005 millim. excedentia. 



At first sight this species is sufficiently similar to Squamaria 

 saxicola* diffract a, Ach., but is a true Parmelia (as is at once evi- 

 dent from the spermogones). 



On rocks (quartzose) ; sparingly gathered and very rarely fertile. 



P. squamariata, NyL, sp. n. Thallus olivaceus vel castaneo-oliva- 

 ceus, adpressus, adnatus, indistincte radioso-divisus (ambitu dilutior), 

 nitidiusculus, crenato-incisus, laciniis ibi distinctioribus sed contiguis 

 et subconfluentibus (K medulla e flavo cinnabarine tincta) ; apothecia 



