282 FLORA. OF NEW ZEALAND. [Lic/ienes. 



gatis subpinnatifidis marginibus sinuatis crenatis seepe albo-marginatis (sorediiferis) apice repando-crenatis, 

 su-px&fusco-eeneo s. viridi-rufescente (humecto lurido-virescente) albo-guttato, dein sorediis prorumpentibus 

 sparsis verrucEeformibus albis s. cserulescentibus exasperato, subtus tomentoso rufcscente ad centrum nigri- 

 cante, cyphellis planiusculis niveis, apotheciis parvis submarginalibus planiusculis nigro-fuscis margme 

 crenato granulate— S. argyracea, Delise, Stict. p. 91. t. 7 '. /. 30 (pessima). S. aspera, Lam: in Linn. 

 1827. p. 41. Mont. ! in Bel. Voy. aux Lid. Or. p. 120; ejnsd. Voy. au Pole Sud, p. 187. 

 Hab. Northern and Middle Islands, Colenso, Lyall, etc. 



Allied to S. syhatica, but readily distinguished by its albo-guttate thallus, the spots being really incipient 

 soredia, which soon break form into minute white or bluish fibrillose warts, by which the upper surface is rendered 

 rough. Dr. Montagne has kindly sent a fructified specimen of this widely-dispersed species from Cochin China ; it 

 occurs also in the Mauritius, Bourbon, Madagascar, Tahiti. There is little doubt that 8. aspera, Laur., is the same 

 as S. argyracea, Del. Dr. Montagne cites as a probable synonym of the former 8. exasperata, Pers. in Herb. Mont. 

 M. Delise gives as a synonym of the latter 8. exasperata, Moug. in Herb. 



20. Sticta Hookeri, Bab. ; thallo submembranaceo amplo profunde laciniato scrobiculato et reticulata, 

 laciniis adscendentibus irregulariter laceris sinuatis et crenatis subrotundatis, supra lurido glaucescente 

 ajneo-fusco (humecto nigro-viridi) in ambitu rufescente, tuberculis isidioideis fuligineis squalidis (subobso- 

 letis) hinc inde prorumpentibus subtus tomentoso fuligineo-nigro in ambitu fuscescente, cyphellis pimcli- 

 formiius substipitatis clausis albis, apotheciis marginalibus et sparsis liberis subpedicellatis flexuosis extus 

 ferrugineo-rufescentibus, disco aterrimo concavo s. piano demum inflexo convoluto, margine glaberrimis 

 politis ssepe corrugatis thallode tenuissimo snbnullo. (Tab. CXXV. 13. ) 

 Hab. Northern Island, Colenso. Bay of Islands, J. D. H. 



Resembles 8. syhatica, as Dr. Hooker justly observes in a manuscript note. In every specimen, however, of 

 8. syhatica which I have examined, from various European localities (and they are tolerably numerous), the ey- 

 phellEe are distinctly urceolate and sunk in the thallus (never punctiform), and often of a considerable size; whereas 

 here they are altogether different, bearing much resemblance to another species {8. Wallichiana, Tayl. !), collected in 

 Nepal by Wallich and Hooker. Again, the apothecia which the older writers ascribe to 8. syhatica are those of 

 a Pellidea, being situate at the very end of the digitate lobes ; it is true that an error has long been suspected (see 

 Fries, etc.), and Dr. Montagne informs me that Dr. Welwitseh has collected S. syhatica "apotheciis biatorinis," 

 like those of S. fuliginosa, I presume, which Dries describes ; but these appear, from the figures in Engl. Dot. t. 

 1103, and from Eries's and Hooker's remarks, to be of a very different colour and structure. Neither does Deiise's 

 description of the 8. syhatica, var. Peruviana, accord either in the cyphellse or the apothecia : " cyphellis urceolatis 

 membranaceis albidis, apotheciis sparsis crassis disco brunneo-fusco margine evaneseente in junioribus disco concavo 

 rufescente margine prominulo subcrenato subinflexo." In truth the plant is, after all, far more nearly allied to 8. an- 

 thraspis, Ach., which we refer to S.foveolata, but the lobes are not, as it seems, cornieulate, and the apothecia are 

 much larger and more free. The apothecia are in their very infancy closed, but very soon become remarkably open 

 and free, almost stipitate; the thalline excipulum (which is often corrugated outside) is polished towards the 

 edo-e, and this is so extremely fine that the disc appears to have no distinct margin. The thallus shows some 

 slight symptoms of becoming isidiophorous, with sooty processes ; but these do not assume a distinct coralline form, 

 as in S. syhatica. The upper and under lobes have a strong tendency in this plant to adhere to each other, so as 

 to become absolutely united at certain points, and not to be separated without rupturing the thallus.— Plate 

 CXXV. B. Fig. 1, plant, nat. size; 2, portion of apothecium and asei ; 3, ascus ; 4, immature sporidia; 4, mature 

 sporidium : — all highly magnified. 



** Cyphella large, urceolate, at length explanate. 

 21. Sticta, fuliginosa, Ach., Met/i. Lick. p. 280. Fries, Lick. Europ.p. 52. 

 Hab. Northern Island, Colenso. (Barren.) 



