330 A Monograph of the Myxogastres. 



Stemonitis bicolor, Gmel., Sys., ii., 1469 (1791). 

 Sphaerocarpus luteus, Bull., t. 407, f. 2 (1797). 

 Sphaerocarpus viridis, Bull., t. 407, f. 1 (1797). 

 Sphaerocarpus aurantius, Bull., t. 484, f. 2 (1797). 

 Physarum aureum, Pers., Disp., t. 1, f. 6 (1801) ; Grev., t. 



124; Ditm., t. 23. 

 Physarum viride, Pers., Syn., p. 172 (1801); Ditm., t. 24; 



Nees., f. 108. 



Physarum aurantium, Pers., Syn., t. 3, f. 7 (1801). 

 Physarum luteum, Pers., Syn., 172 (1801). 

 Trichia viridis, DC., Fl. Fr., ii., 252 (1805). 

 Trichia aurantia, DC., Fl. Fr., ii., 253 (1805). 

 Physarum nutans, (3. viride, Fr., S. M., iii., 129 (1829) ; Cooke, 



Hdbk., n. 1135, var. B. 

 Physarum nutans, y. aureum, Fr., S. M., iii., 129; Cooke, 



Hdbk., n. 1135, var. y. 



Physarum nutans, b. coccineum, Fr., S. M., iii., 129. 

 Physarum striatum, c. aurantiacum, Fr., S. M., iii., 131. 

 Physarum nutans, c. luteovirens, Rabh., Fl. Cr., 2268 (1844). 

 Physarum viride, Fr., S. V. S., 453 (1849). 

 Physarum aureum, Fr., S. V. S., 453 (1849). 

 Physarum coccineum, Fr., S. V. S., 453 (1849). 



Tilmadoche gracilenta, Host. 



Sporangia globose, slightly umbilicate below, wall llackish- 

 brmvn, hoary with scattered particles of lime ; stem elongated, 

 thick at the base, which is expanded into a small hypothallus, 

 tapering upwards and usually slightly curved, dark brown below, 

 paler above, longitudinally wrinkled, filled with particles of 

 lime ; capillitium rather scanty, threads irregularly anastomos- 

 ing, nodes scattered, small, elliptical, containing coloured granules 

 of lime ; spores globose, brownish-lilac, very minutely verruculose 

 or smooth, 8 10 /x diameter. 



Tilmadoche gracilenta, Host., Mon., p. 129; Sacc., Syll., vii., 1, 

 n. 1246; Raunk., Myx. Dan., 76. 



On bark and wood. Britain (a specimen from Sowerby's 

 Herbarium, named by Rostafinski) ; Europe ; United States. 



