548 PAEMELIACEAE. 



2. COCCOCARPIA Pers. 



1. Coccocarpia pellita (Ach.) Muell. Arg. Flora 65: 320. 1882. 

 Parmelia pellita Ach. Lich. Univ. 468. 1810. 



Thallus without isidia. 



Hypothallus copious and extending beyond the lobes. a. var. pannosa. 



Hypothallus medium or scanty. 



Lobes about 0.4-1.0 mm. wide, repeatedly pinnatifid- 



incised. 6. var. genuina. 



Lobes 210 mm. wide, cuneate, subentire. 



Rhizoids blue-black ; apothecia blackening. c. var. parmelioides. 



Rhizoids partly white ; apothecia persistently pale 



brown. d. var. smaragdina. 



Thallus more or less isidiose. e. var. tenuior. 



la. Coccocarpia pellita var. pannosa Muell. Arg. Flora 65: 320. 1882. 



On trees, New Providence, at Lake Cunningham, and Crooked Island, at Vaux- 

 hall : Cuba ; Australia. 



lb. Coccocarpia pellita var. genuina Muell. Arg. Flora 65: 321. 1882. 



On trees. Watling's Island, near Cockburn Town : Cuba : Porto Rico : Brazil. 

 This represents the Acharian type and is well illustrated in Swartz Lich. Amer. pi. 6. 



lc. Coccocarpia pellita var. parmelioides (Hook.) Muell. Arg. Flora 65: 320. 



1882. 



Lecidea parmelioides Hook, in Kunth Syn. Plant. Orb. 162. 1822. 

 Coccocarpia imoly'bdea Pers. in Gaudich. Voy. Uran. 206. 1826. 

 Pannaria molyMea Tuck. Syn. N. A. Lich. 1: 124. 1882. 



On trees. Great Bahama, Abaco, New Providence : widely distributed in the 

 warmer regions of both hemispheres. 



Id. Coccocarpia pellita var. smaragdina (Pers.) Muell. Arg. Flora 65: 320. 



1882. 



Coccocarpia smaragdina Pers. in Gaudich. Voy. Uran. 206. 1826. 



On trees. New Providence, at Lake Cunningham : widely distributed in the 

 warmer regions of both hemispheres. 



le. Coccocarpia pellita var. tenuior (Nyl.) Muell. Arg. Flora 65: 322. 1882. 

 Coccocarpia tnolybdea var. tenuior Nyl. apud Krplh. Flora 59: 76. 1876. 

 On trees, New Providence, at Maidenhead Coppice : Porto Rico ; Mauritius. 



Family 13. PARMELIACEAE. 



1. PARMELIA Ach. 



Margins ciliate. 1. P. urceolata. 



Margins naked. 



Medulla yellow. 2. P. sulphtirata. 



Medulla white. 



Thallus greenish-straw-color. 3. P. flora. 



Thallus gray or whitish. 



Medulla turning red when tested with caus- 

 tic potash. 



Margins entirely without soredia. 4. P. latissima. 



Margins more or less sorediate. 4n. P. latissima .v&r.cristifera. 



Medulla not red with caustic potash. o. P. pcrlata. 



1. Parmelia urceolata Eschw. in Mart. Fl. Bras. 1: 207. 1833. 



On trees, New Providence, along Soldier's Road : tropical South America and 

 Africa. 



