XC1V ADDKNDA TO THE 



P. 169, after line 13 from bottom, add to the Synopsis : — 



9. POLYPREMUM. Corolla (white) and single style very short. Pod oyoid, many-seeded, 



loculicidal. Leaves slightly connected at the base, very narrow. 



10. GELSEMIUM. Corolla yellow : style slender : stigmas 2, each 2-parted. Pod flat, 



several-seeded. Seeds winged. Leaves ovate or lanceolate : stipules obsolete. See p. 296. 



P. 174. 9. POIiYFREMUOT, L. Polypremdm. 



Calyx 4-parted, persistent ; the divisions awl-shaped from a broad scarious- 

 margined base. Corolla not longer than the calyx, almost wheel-shaped, bearded 

 in the throat ; the 4 lobes imbricated in the bud. Stamens 4, very short : anthers 

 globular. Style 1 , very short : stigma ovoid, entire. Pod ovoid, a little flat- 

 tened, notched at the apex, loculicidally 2-valved, many-seeded. — A smooth, 

 diffuse, much-branched, small annual, with narrowly linear or awl-shaped leaves, 

 connected at their base across the stem by a slight stipular line ; the small 

 flowers solitary and sessile in the forks and at the ends of the branches ; corolla 

 inconspicuous, white. (Name altered from Trokimpefivos, many-stemmed.) 



1. P. pi'OCMHBBtoens, L. — Dry fields, mostly in sandy soil, Virginia and 

 southward. June - Sept. 



P. 196. 



30\ Aster ametliystifllias, Nutt. Differs from A. oblongifolius in its 

 more upright growth, more hirsute and cinereous pubescence (that of the stem 

 widely spreading), which is not at all glandular or viscid, more racemose heads 

 of smaller size, the scales of the involucre erect or less spreading, the rays of a 

 light clear blue. — E. Massachusetts, Dr. Robbins, W. Boott ,- and meadows near 

 Amherst, Prof. Tuclcerman. Athens, Illinois, Mr. E. Hall. 



P. 200. 



3. BoSfOllia diffusa, L'Her. Stem diffusely branched ; leaves lance- 

 linear, those on the branchlets very small and awl-shaped ; heads panicled, very 

 small ; pappus of several very short bristles and 2 short awns. — Prairies near 

 Centralia, Illinois, Vasey. Common south westward. 



P 205. 



27\ Solidago Radala, Nutt. Stem and oblong or obovate-spatulate 

 leaves rigid and very rough, not hoary, the upper sessile ; scales of the involucre 

 oblona;, rigid ; rays 3 - 6 : otherwise much as in S. nemoralis, of which it is prob- 

 ably a greener and rough variety. — Dry Hills, W. Illinois and southwestward. 



P. 227. 



3 a . Artemisia dracancaloides, Pursh. — a perennial species, com- 

 mon west of the Mississippi, with leaves linear and entire, or the lower 3-cleft, 

 cinereous or nearly glabrous, and small panicled heads — has been found in S. 

 W. Illinois by Dr. Vasey. 



7\ A. frigida, L., of the third section (p. 228), — a low species, slightly 

 woody at the base, white all over with a soft silky wool, the leaves pinnately 

 parted, their divisions 3-5-cleft and linear, — was found at the Falls of St. An- 

 thony by /,, Lpsqmreux and T. J. Hale. It is common thence northwestward. 



