548 PAEMELIACBAE. 



2. COCCOCAEPIA Pers. 



1. Coccocarpla pSllita (Aeh.) Muell. Arg. Flora 65: 320. 1882. 

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



Thallus without isldia. 



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



Hypotliallus medium or scanty. 



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



incised. 6. var. genuina. 



Lobes 2—10 mm^ wide, cuneate, subentire. 



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



Bhizoids partly white ; apothecia persistently pale 



brown. ^ d. var. smara^giina. 



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



la. Coccocarpia pellita var. pann6sa 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 Eico ; Brazil. 

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



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

 1882. 



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

 Coccocarpia moly'bdea Pers. in Gaudicb. Voy. Uran. 206. 1826. 

 Pannaria moly'bdea 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 peUita var. smardgdina (Pers.) Muell. Arg. Flora 65: 320. 

 1882. 



Coccocarpia smaragdina Pers. in Gaudieh. "Voy. TJran. 206. 1826. 



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

 warmer regions of both hemispheres. 



le. Coccocarpia peUita var. tenuior (Nyl.) Muell. Arg. Mora 65: 322. 1882. 

 Coccocarpia moly'bdea var. tenuior Nyl. apud Krplh. Flora 59 : 76. 1876. 

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



Family 13. PARMELIACEAE. 



1. PAEJMELIA Ach. 



Margins ciliate. 1. P. urceolata. 



Margins naked. 



Medulla yellow. 2. P. sulphurata. 



Medulla white. 



Thallus greenish-straw-color. 3. P. flava, 



Thallus gray or whitish. 



Medulla turning red when tested with caus- 

 tic potash. 

 Margins entirely without soredla. 4. P. latissima. 



Margins more or less sorediate. 4fl. P. IntinsimavsiT.crisUfera, 



Medulla not red with caustic potash. 5. P. perlata. 



1. Parmelia urceolslta Esohw. in Mart. Fl. Bras. 1: 207. 1833. 



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

 Africa. 



