348 FLORA OF TASMANIA. [Lichenes, by Babington & Mitten. 
(the points being abortive apothecia). Consequently Fries's remark, “ Nec unquam nigro-punctata visa,” must be 
cancelled. 
11. Parmelia parietina (Ach. Syn. Lich. p. 200; Bab. l. c. p. 287). 
Has. Rocks, trees, also on stems of Salicornia, Gunn. Pittwater, Oldfield. Cheshunt, Archer. 
Specimens normal and fertile. 
12. Parmelia chrysophthalma (Ach. Meth. Lich. p. 267).—P. spinosa, Zayl.! Lich. Ant. n. 69. 
Has. Greenstone rocks, close to the sea: Georgetown, Gunn. 
$ 2. ZEORA, Fries, Syst. Orb. Veg. (Psoroma et Pannaria, etc., Nyl. Enum. Gen. des Lich.) 
13. Parmelia sphinctrina (Mont. !).—P. rubiginosa, 8 sphinctrina, Hook. fil. Fl. Antarct. p. 533. 
Bab. l.c. p. 289. 
Has. On wood, apparently common. Collected by Hooker, Gunn, and Archer, etc. 
A perplexing plant, and variously regarded by different botanists. 
14. Parmelia imbricata (Nyl.! Enum. p- 109, sub Pannaria). 
Has. On Mosses, Hooker. 
A pretty species, placed next to P, pholidota, Mont., by Dr. Nylander, whose specific character we haye not 
seen. It seems to us closely allied to P. Femsjonensis, Fries, judging from the description. 
15. Parmelia triptophylla (Fries; Bab. Le p. 290). 
Has. On bark, fertile, Guan. Cheshunt, Archer, barren. 
Agreeing with the form called Z. microphyllus, E. Bot. t. 2128. 
16. Parmelia pholidota (Mont.!; Bab.l.c. p. 290). 
Haz. On wood, Archer, etc. 
17. Parmelia nigrocincta (Mont.!; Bab. l.c. p. 290). 
Haz. On wood, probably collected by Hooker. 
$ 3. PLACODIUM. 
18. Parmelia splachnirima (Tayl.!); “thallo utringue albido glabro sinuato-lobato, lobis rotun- 
datis crenatis marginibus adscendentibus, gemmis marginalibus plano-granulatis statim in thallum expan- 
dentibus, apotheciis centralibus planiusculis, disco carnéo albo-pruinoso margine tenui undulato."— Tayl. 
Lich. Antarct. n. 73.—(Tas. CXCIX. C.) | 
Has. On the ground. Collected by Gunn. 
Allied to P. lentigera, Ach., more nearly than to any other with which we are acquainted, but evidently distinct. 
The thallus is more deeply divided, less distinctly orbicular, of a slightly pink hue, having the margins of the same 
colour as the upper surface. Apothecia densely pruinose, not becoming convex in age, as in P. lentigera. This 
species might perhaps more appropriately be referred to Biatora, which comes extremely near to Placodium.—PLATE 
CXCIX. C. : 
19. Parmelia rugulosa (Nyl.! Enum. p. 111, Placodium). 
Has. Southport, on stone, Ch. Stuart 
Very near nct armelia elegans, Ach., from which we should hardly have distinguished it. It is described in 
a aM gs Lichens M Chili,’ p. 193. The singular Tugose appearance of the thallus and backs of the apothecia, 
T principally differs from P, elegans, may possibly be due to some accidental cireumstance. 
