ACCOUNT OF GENUS SEDUM AS FOUND IN CULTIVATION. 179 



It was collected in Spain by F. Sundermann of Lindau (see his 

 Catalogue for 1913}, and distributed under the name S. rivulare ; but 

 5. rivulare Boissier (= S. melan anther um DC.) is a different plant, 

 resembling a slender 5. aftglicum (for illustration see Boissier, "Voyage 

 Midi d'Espagne," tab. 63). 



I have grown a large series of dasyphyllum forms, collected mainly 

 from garden sources, and find them puzzling. They vary much, in 

 the first place, in size (from type to macrophyllum) ; next, in hairiness, 

 from quite glabrous (sub-var. glabratum Rouy and Camus), sent by 

 Dr. ScHROETER from Zurich, and collected on a wall at Midleton, Co. 



Fig. 99. — S. brevifolium DC. 



Cork, to the densely hairy glanduliferum. Then one very hairy form 

 has leaves which readily drop off, so that after heavy rain the stems 

 are almost bare and the fallen leaves soon form a dense mat of young 

 plants ; while in other hairy forms the leaves are firmly attached. 



According to Kerner, the flowers are sometimes replaced by 

 leaf-buds. 



77 . Sedum brevifolium DC. (fig. 99). 



S. brevifolium De Candolle, " Rapports Voyages," 2, 79, 1808. Masters 

 in Gard. Chron. 1878, ii. 717. 



Synonyms. — S . farinosutn of gardens (not of Lowe, which is a Madeira plant 

 allied to album, and not in cultivation so far as I am aware). 5. Pittoni (a nomen 

 nudum) of gardens. 



Illustrations. — De Candolle, " M6m. Crassul.," plate 4A. Cusin, and 

 Ansberque, " Herb. Flor. Fran9aise, Crassul.," tab. 23. 



A delightful, tiny plant, known at once by its sub-globular mealy 

 reddish leaves, arranged in four close vertical rows, and small white 

 flowers. 



