ERlTlSH SEHASROPS IDEAS. 
65 
268. Hendersonia Fiedleri, West. Sacc. Syll. 2299. 
On Cornus. Highgate. 
269. Hendersonia lonicerae, Fr. Sacc. Syll. 2309. 
On Lonicera. Kew. 
270. Hendersonia rubi, West. Sacc. Syll. 2316. 
On Rubus. 
On Rosa canina. Kew. 
271. Hendersonia tiliae, Lev. Sacc. Syll. 2318. 
On Tilia europcea. Kew. 
272. Hendersonia ambiens, Cooke. Grev. xiv., 5. 
On Acer dasycarpum. Kew. 
273. Hendersonia tamaricis, Cooke. Grev. xiv., 5. 
On Tamarix gallica. Kew. 
274. Hendersonia exigua, Cooke. Sacc. Syll. 2330. 
On bark. Edinburgh (F. B. n., 24). 
## Herbicoloe. 
275. Hendersonia lirella, Cooke. Sacc. Syll. 2361. 
On Spiraea ulmaria. 
*** On Monocotyledons. 
276. Hendersonia sparganii, Nieul. Sacc. Syll. 2377. 
On Sparganium. Aberdeen. 
277. Hendersonia culmicola, Sacc. Syll. 2391. 
On culms of grass. Warwickshire. 
278. Hendersonia culmiseda, Sacc. Syll. 2392. 
On Phragmites. Aberdeen. 
279. Hendersonia equiseti, Trail. Grev. xin., 96. 
On Equisetum. Aberdeen. 
II. Sporocadus. Perithecia and sporules large. 
280. Hendersonia loricata, S. 4* R . Sacc. Syll. 2410. 
On decorticated branches. Bristol. 
281. Hendersonia ulmicola, Clce. Sacc. Syll. 2412. 
On Ulmus. 
282. Hendersonia polycystis, B. 8f Br. Sacc. Syll. 2414. 
On Betula. 
Gen. 2. PROSTHEMIUM, Kunze. Sacc. Syll. in., 444. 
Perithecia covered, carbonaceous, globose-depressed, black. 
Sporules multiseptate, united in a stellate capitulum, coloured ; 
basidia obsolete or filiform. 
283. Prosthemium betulinum, Kunze. Sacc. Syll. 2430. 
On Betula alba. Blacklieath. Wiltshire. 
284. Prosthemium stellare, Biess. Sacc. Syll. 2431. 
On Alnus glutinosa. Spy e Park. 
