1921] Weatherby,— A Form of Ilex opaca 119 



Ilex Aquijolium have been known in cultivation for many years 

 (e. g., var. laurifolia Hort); the form of /. opaca in question appears 

 to be analogous to them. Dr. Jones's observations show that it 

 may becone clearly segregated in the wild; since it is a striking 

 variant and likely to attract attention, it is, perhaps, well that it 

 should have a name. It may be called: 



Ilex oi'ACA Ait., forma subintegra f. now, foliis integris vel 

 sparsissime spinoso-dentatis. Leaves entire or with a very few 

 scattered spiny teeth. — On a knoll, in sandy loam among white oaks 

 and birch<\s, Mashpee, Mass., January 16, 1921, L. C. Jones (type 

 in Gray Herb.). 



Specimens referable to this form have been seen from South Caro- 

 lina, Florida and Mississippi; it is, no doubt, to be expected wherever 

 the species occurs. — C. A. Weatherby, Gray Herbarium. 



The American Variations of Silene acaulis. — Practically a 

 century ago that wonderfully keen student of the flora of New- 

 foundland and the adjacent regions, Bachelot de la Pylaie, had in 

 preparation a very detailed Flore de Terrc-Neuvc, St. Pierre et Miclon, 

 a work which, on account of his untimely death, was never pub- 

 lished. The manuscript of this work is preserved at the Jardin des 

 Plantes in Paris and in it la Pylaie proposed many American plants 

 as new T species or varieties, — plants which, naturally, have subse- 

 quently been detected and published by others. One of the novel- 

 ties proposed by him was the plant which has generally passed in 

 northeastern America as Silene acaulis L. La Pylaie, giving it a 

 name which if now published would merely add to synonymy, dis- 

 tinguished it from true S. acaulis of Europe by "floribus breviter 

 pedunculat.is, caespite vix emersis . . . capsulis calyce paulo 

 longioribus"; true <S. acaulis having, as he said, "les capsules . . . 

 deux fcis aussi longues que le calice" and the peduncle usually equal- 

 ling or exceeding the latter. 



In this case, although la Pylaie thought he had a new variety, 

 his plant was, as it now proves, identical with a generally recog- 

 nized variety of arctic and alpine regions of Europe, var. exscapa 

 (All.) DC; and in 1858 Rohrbach in his Monographic dcr Gattung 

 Silene poirted out that our plant belongs to this variety. The bib- 

 liography is as follows: 



