98 THE JOURNAL OF BOTANY 



Folia l'5-2 cm. long., 4-8 mm. lat., in sicco olivaceo-nigra ; 

 petioli 3-5 mm. long. Pedunculi adusque 4 mm. long. Involucra 

 7x8 mm. ; phylla intermedia 6 mm. long., 1-2 mm. lat. ; horum 

 appendix + 2 mm. long., tenuia, difficile separabilia. Corollas 

 puniceae, in toto 4 mm. long. ; tubus in feme -3 mm. superne fere 

 1 mm. lat. ; lobi oblongi, obtusi, 1 mm. long. Styli rami 2 mm. 

 long. Acboenia 4 mm. long., in sicco dilute straminea, punctulis 

 brunneis creberrime inspersa. Pappi setae ssepissime 1-5-3 mm. 

 long. 



A curious little plant, with somewhat the look of a Centra- 

 therum, but without the caducous pappus of that genus. The 

 involucral leaves are so closely appressed as to make it impossible 

 to separate them in the dry state, and not easy when moistened. 

 Relatively to the achenes the pappus is short for Vernoiiia, and its 

 hairs are few and in the dry state stand close together; moreover, 

 when moistened they diverge slowly until they are at right angles 

 to the achenes, no doubt a means whereby the achene is anchored 

 when it falls upon moist ground. 



Under these circumstances I have doubts whether this should 

 be placed in Vernonia, but I place it there provisionally, as there 

 seems no more suitable genus to receive it. 



(To be continued.) 



MYCETOZOA FROM AROSA, SWITZERLAND. 

 By Gulielma Lister, F.L.S. 



Arosa is in Canton Graubunden, about eight miles west of 

 Davos. The village with its numerous hotels and sanatoria is 

 finely situated at an altitude of 6000 feet, on the hillside high 

 above the Plessur river, which flows north by a winding course 

 to join the Rhine near Chur. The lower slopes of the steep 

 valley are clothed with spruce woods ; above, the trees give place 

 to moist meadows, alpine pastures, and mountain heights where 

 snow often remains throughout the summer. 



The weather during the five weeks I spent at Arosa last 

 summer was changeable. Three times heavy snow fell and 

 covered all the land for a few days, when it was succeeded by 

 rain and mist with intervals of brilliant sunshine. 



While searching for Mycetozoa in the latter part of June, I 

 found but scanty and weathered remains of such species as 

 Tricliia varia, Cribraria macrocarpa and Lycogala in the spruce 

 woods. Later, when I had been joined by Miss Hibbert-Ware 

 and Miss Schinz, the weather was more genial and we learnt the 

 more favourable places in which to hunt. During the last week 

 of July Plasmodium was found emerging from stumps and 

 prostrate trees in many parts of the woods. 



On the alpine pastures, clumps of Cirsium sjnnosissimum, 

 Senecio alpinus and Aconitum Nai)elUis afforded good hunting 

 grounds. Amongst the fresh young foliage were many of the 



