202 The Scottish Naturalist. 



pallido-glaucescens, laciniato-divisus adpressulus, laciniis 

 plerumque angustis interdum rotundatis et saepe sinuato- 

 divisis, subtus niger, ambitu spadiceus vel pallidior, breviter 

 nigro-rhizinosus ; medulla pallide rufescens vel rarius obso- 

 lete rufescens (K fl. dein intense rubens, I leviter violacea) ; 

 apothecia fusca vel fusco-rufa mediocria (latit. 2-5 mm.), 

 receptaciilo plerumque pallidiore, extus laevigato, margine 

 fere integro et ssepius inflexo; sporse Snse ellipsoideae, .015- 

 .018 X 009-.012 mm,; spermogonia innata vel in verrucis 

 nonnihil prominulis insidentia; spermatia recta cylindrica, 

 circ. .006 X .0007 mm. 



Ad ramos apud montes Neilgherries in India a Dr G. Watt lecta. 

 The reaction by iodine on the medulla is characteristic and 



constant, although occasionally slowly developed. 



Pat'melia coilocarpa sp. nov. — Thallus albus vel albidus, interdum 

 ad rufescentem mergens, Isevigatus laciniato-lobatus, laciniis 

 margine minute sinuato-divisis, breviusculis, subtus niger 

 creberriter et breviter nigro-rhizinosus ; medulla alba (K fl. 

 dein rubens) ; apothecia elevato-sessilia fusco-rufescentia 

 majuscula (latit. 7-12 mm.), receptaculo extus foveolato- 

 impresso, margine fere integro srepius incurvo; sporie 

 6-8n?e, .024-.034 x .012-.017 mm., paraphyses non dis- 

 tinctae in gel. firma involutae. lodo gel. hym. intense ceeru- 

 lescens. Spermatia cylindrica recta, .005-. 0058 x .00065- 

 .0008 mm. 

 Ad ramulos, prope Fernando Po in Africa occid., a G. Thomson 

 lecta. 



The spermatia are not so exactly cylindrical as those pre- 

 viously described, but it would be a stretch of imagination to 

 designate them otherwise. 



Parnielia xanthotropa sp. nov. — Thallus flavescens vel cineras- 

 centi-flavescens, adpressus vel crustoso-adpressus laciniatus, 

 laciniis brevibus ambitu creratis vel sinuato-dissectis, non- 

 nihil irabricatis, rugulosus vel nodulosus (saltem centro) vel 

 passim tuberculoso-isidiatus, subtus niger parce rhizinosus ; 

 medulla alba (K fl. dein intense rubens vel sanguineus) ; 

 apothecia fusco-rufa, mediocria (latit. 3-7 mm.), margine 

 receptaculari fere integro et plerumque incurvo ; sporce ellip- 

 soideae, .018-.026 x .01 i-.oi 5 mm. lodo gel. hym. intense 

 c?erulescens. Spermogonia nigra, peridio toto infuscato et cra.s- 

 siusculo ; spermatia bifusiformia, .006.007 ^ (^i-"^) -ooi wwii- 



