4 
17. P. acGtclbulum, Me. K yellow then red, occurs in arctic 
America. Most of the Parraelias of the brown series give no re¬ 
action. 
18. P. sorsdica. Nyl. Flora 1885, p. 605. Like small forms of 
caperata^ but soi'ediate. Me. K. Cl. red: spoi'es .011-14 by .006-8”’'". 
Sperrnatia acicular, subfusiform, .006-9'"”’ long. ^Northwest coast. 
19. P. leuGOChlora Tuck. Th. K. red. Sperrnatia aeicular, or 
now subbifusiform, .007-10'"'" long. 
20. P. immiscBns IS^yl- L c., p. 606, similar to sulp)hurata^ but 
the spores only .008-10 by .004-5"’"'. Mexico. 
21. P. persulphurata Nyl. 1. c., p. 606. Smaller than sul- 
phurata, hardly isidiose, somewhat sorediose. The mai'gins of the 
lobes creuulate-incised. Apoth. unknown. Th. K.-j-Louisiana, ( ’uba- 
Also in Afriea. Stiz. Afr. n. 256. 
22. P. mesogenes Nyl. 1. c., p. 609. Similar to perlata., but 
the thallus K-|-, and the spores larger, .020-25 by .011-15""". Mexico. 
23. p, eciliata Nyl. l. c., p. 610. Like crinita, Me. K yellow, 
the margin of the receptacle entire; spores .024-30 by .012-18"’"’. 
Sperrnatia cylindrical, .004-5"’"’. long. Mexico. 
24. P, praesignis Nyl. 1. c. p. 610. Similar to temiirimis 
but the thallus yellow. Me. CaCl red: spores .014-16 bj^ .007-9'""’, 
Sperrnatia bifusifoi-m, .006-7"’"’. long, Mexico; Arizona, Pringle., 
1881, in herb. VFilley. 
25. P. Carcliniana Nyl. 1. c., p. 614. Thallus glaucesceut? 
rugulose or reticulate-rimulose, fibrillose-isidiose, lobate-laciiiiate, 
the laciniae siuuate-incised, beneath brownish-black, rugulose, tibri- 
llose; spores brown, the margin isidiose: spores .012-14 by .006- 
7"’’’’. Sperrnatia flask-shaped .004)^"’"’. long. Th. K. -|-. South Car¬ 
olina. Bavenel. 
' 26. P. scortella Nyl. 1. c. p. 615. lake atrichella Nyl. or snb- 
Icevigata^ the thallus isidiophorous. Spores .008-9 by .004-5"’"’. Me. 
K. red. Texas in herb. Tuck: also in Japan, Nyl. Jap., p. 27. 
27. P. tinctorum Despr., Nyl. Pyr. Or. 1891, p. 40. Similar to 
latissima., but the thallus isidiose. Apoth. large, cupuliform, per¬ 
forate, externally isidoise: spores .010-14 by .OOu^-^-O'’’"’. Me. CaCl 
red. Syn. P. perlata \n,Y. coralloidea Me 3 ^ & Flot., P. cora^Zoidea 
Wain. Braz. I. p. 33, P. prgetervisa iSIiiller Beitr., n. 191, 
Usamb, n. 74, P. perlata v. platyloba ib., ib., n. 818. Sper- 
matia aeicular-eylindrical, .010-23'""’ long. A widelj^ extended lichen 
a sterile form of which, in herb. Willey, coll. II. A. Green, from the 
west coast, resembles the var. platyloba. A Jamaiea specimen, 
Kev. F. Wolle, determined by Nyl., has the thallus prolonged into 
convolute lobes. 
New Bedford, Mass., July, 1896. 
[Heprinted, with slight modifleations and additions from the 
Botanical Gazette for April, 1896.] 
