234 PROCEEDINGS OF THE AMERICAN ACADEMY 



viridiseda, Nyl. The wliole cluster approaches very closely, it should 

 seem, to P. Ginchonce. 



Pyrenula planorbis (Ach.) — Trees, "Waialua Mountains, Oahu 

 (Mann). 



Pyrenula diluta (Fee). — Trees, Oahu (Mann). 



Pyrenula nitida, Ach. var. nitidella, Floerk. — Trunks, Oahu 

 (Mann). — A Lichen also occurs with a white crust, but otherwise 

 allied to this, which I take for P. CincJionoe, Fee, included by Ny- 

 lander under his Verr. nitida. 



Pyrenula makginata. Hook. — Trunks, Oahu (Mann). Var. 

 Santensis, Nyl. Verrucaria, Tuck, in litt. — With the last, from 

 which it differs in its smaller apothecia, and cocciform spores. 



Pyrenula leucostoma, Ach. — Trunks, Oahu (Mann). — Identi- 

 cal with a Japanese Lichen determined by Dr. Nylander. 



Pyrenastrum astroideum (Fee) Eschw. — Trunks, Oahu 

 (Mann). Var. duplicans, Nyl. — "With the last (Mann). 



Lichenes Collemacei. 



Leptogium tremelloides (Ach.) Fr. — Hawaiian Islands (Z. 

 mana?2Mm, Mont., e Nyl.) Nyh — Oahu (Mann). Var. laciniatum. 

 Tuck. — Oahu (Pickering), Tuck. 1. c. ; (Mann). 



Leptogium saturninum (Dicks.) Nyl. — Trees, Ulapalakua, East 

 Maui (Mann). 



Leptogium chloromelum (Sw.) Nyl. — Oahu (Mann). 



Leptogium phyllocarpum (Pers.) Nyl. — Oahu (Mann). 



, Addenda et Corrigenda. 



John Miers, in the Annals and Magazine of Natural History, 19, n. 

 109, Jan. 1867* sustains Loureiro's genus Nephroica as distinguished 

 from Cocculus by the cleft petals and other characters, and his genus 

 Hohpeira, distinguished from both the others by the broad, emarginate 

 petals and the peculiar perforated putamen, etc. He then arranges 

 the Hawaiian species (of which he distinguishes three) thus : — 



Nephroica ovalifolia, Miers. Cocculus ovalifolius, DC. C. 

 umbellatus, Steud. Menispermum ovalifolium, Vahl., and refers to 

 a specimen in herb. Brit. Mus., and to Barclay's, 1271. According to 

 him, it also grows in Corea. 



Nephroica Ferrandiana, Miers. Ferrandia okifolia, Gaud., 



