MUCEDINES. 351 



7. favorum, B. and Br. (no. 762, wiik ajig.). On honeycomb. 



8. acquivocum, B. and Br. {no. 821). On Polyporus Schweinitzii* 



9. concentricum, B. and Br. {no. 547). Cyliudrosporium, linger. On 



nettles, ground ivy, etc. 



10. abortifaciens, B. (Ergotctia, Quekett). On plants infested with Er- 



got. Possibly a conidiiferous condition of Cordiceps imrpurea^tic. 



217. MONILIA, Hill. 



Flocci erect, jointed ; head none ; bearing fasciculate neck- 

 laces of spores at their apices. 



1. fasciculata, Cd.; Grcv. t. 32. On dead grass. 



2. racemosa, Fart ; Boll. t. 132. /. 2. On decaying substances. 



218. DACTYLIUM, Nees. 



Flocci erect, jointed, branched, bearing at the tips of the 

 branchletSj either scattered or in tufts, septate spores. 



1 . pyriferum, Fr. On decayed herbaceous stems. 



2. tenellum, Fr. {no. 536). On moss. 



3. macrosporum, Fr. On dead leaves, etc. 



4. sphferocephalum, B. {no. 243, with a fig.). On dead ivy. 



5. dendroides, Fr.; Grev. t. 126. /. 1. On Agarichii. 



6. obovatum, B. {no. 242, with a fig.). On willow-twigs. 



7. roseum, B. Tricotheeium roseura, Fr. On decaying plants. 



8. tenuissimum, B. {no. 537). On potatoes. Perhaps only a state of 



Fasarium Solani-tuberosi. 



219. PUSIDIUM, Lk. 



Flocci coloured, very delicate, evanescent. Spores straight, 

 filiform. 



* I have omitted 0. Tuckeri, O. Bahamii, O. eryn'qjhokles, O. Leucocoiiium, 

 and O. monilioides, as they arc all mere states of dili'erent species of Erisyphe. 



