518 



ADDITIONS. 



EtJPATORIUM. 



Stems growing in tufts, 2-3 feet high, terete, slender. Leaves 3-5 inches long and 

 4 — 5 lines wide, thin, pale green, closely dotted with minute resinous globules. Corymb 

 fastigiate, compound. Heads about one-third of an inch long. Flowers white. Style exserted. 



Swamps, Queens county, Long Island (Mr. O. Willis). Fl. August - September. A 

 rare species, which has not been found elsewhere, except in the pine barrens of New Jersey, 

 and perhaps also in Pennsylvania. 



Vol. L, p. 348 ; after Aster Nowe-Angli^e, add : 



******** Heads racemose ; scales of the involucre rather rigid, silky ; corolla of the disk and rays violet or purple ; achenia 

 silky villous ; leaves small, closely sessile, oblong or lanceolate, entire, of the same color on both sides. 



Aster concolor, Linn. Racemed Violet Aster. 



Stem simple or sparingly branched, virgate ; leaves crowded, oblong-lanceolate, mucro- 

 nulate, minutely silky on both sides, or sometimes nearly smooth when old, the upper ones 

 appressed ; heads in a simple or compound virgate raceme ; scales of the involucre lanceolate, 

 acute, somewhat appressed ; achenia silky villous. — Linn. sp. (ed. 2.) 2. p. 1228 ; Michx. 

 fl. 2. p. Ill ; Pursh, fl. 2. p. 443; Ell. sk. 2. p. 350; Nees, Ast. p. 115 ; DC. prodr. 5. 

 p. 243 ; Torr. $ Gr. fl. N. Am. 2. p. 113. 



Stems 2-3 feet high, erect or leaning to one side, often clustered, terminating in a long 

 raceme. Leaves about an inch long, somewhat clasping, gradually diminishing in size 

 upward. Heads on short bracteate peduncles, middle-sized ; the rays of a rich bluish violet 

 color. Pappus reddish. 



Dry sandy soils, Queens county, Long Island {Mr. O. Willis). Fl. August - September. 

 This is one of our most ornamental species of Aster ; detected for the first time north of 

 New Jersey, by Mr. Willis. 



Vol. II., p. 178 ; after Empetrum, add : 



2. OAKESIA. Tuckerm. in Hook. Loud. jour. hot. Aug. 1842; Hook. ic. t. 531 ; Endl. 



gen. suppl. 3. no. 57G0. 1. oakesia. 



[In honor of William Oakes, Esq., of Ipswich, Massachusetts, an able botanist, who has long and successfully studied 



the plants of New England ] 



Tucker mania, Klotzsch, not of Null. Sp. of Empetrum, Torr. 

 Mostly dioecious. Stam. fl. Perianth of 5 - 6 leaflets, the 2 innermost ones somewhat 

 petaloid and often united on one side. Stamens mostly 3 (sometimes 4, rarely 5), exserted. 

 Ovary wanting or mostly abortive. Fertile fl. Perianth nearly as in the sterile flowers. 

 Disk none. Ovary 3 - 4-celled : style filiform, 3 - 4-cleft ; the segments subulate. Fruit 

 dry and drupaceous, globose, minute. — A prostrate much branched evergreen shrub, with 

 small somewhat verticillate linear leaves. Flowers sessile, inconspicuous, in small terminal 

 bracteate heads. 



