SYNGENESI A SUPERFLUA. Achillea. 
In North America. Bosc. % . + . Flowers rose-co- 
loured. 
3. A. foliis bipinnatifidis pilosis laciniis linearibus dentatis 
mucronatis, caulibus sulcatis. Smithjl. brit. 2. p. 9O8. 
Willd. sp. pl. 3. p. 2208. 
Icon, Fl.dan.737. Engl. bot. 758. 
In fields and on road sides ; common. 11 . June — Aug. 
v. v. Probably introduced from Europe. Flowers 
white or rose-coloured. 
4. A. foliis bipinnatifidis villosis, pinnis confertissimis, la- 
ciniis lineari- lanceolatis integerrimis, corymbo compo- 
sito. Willd. sp. pl. 3. p. 2209. 
Icon. Bot. mag.4gS- Grnql.it. 1. t. 2 5.f. 2. 
On the banks of the Kooskoosky. M. Lewis. 1 / . June. 
v. s. in Herb. Lewis. Flowers yellow. 
647. TETRAGONOTHECA. L Merit. stirp. p. 17/. 
X. T. hirsutissima ; foliis oppositis amplexicaulibus spatbu- 
lato-ovatis, summis ovatis acuminatis dentatis tripli- 
nervibus. — Willd. sp. pl. 3. p. 21 L 6. 
Polymnia Tetragonotheca. Syst. veg. 658. 
Icon. Dill. elth. t. 283. f. 3 65. 
In fertile soil, on the borders of woods and along hedges: 
Virginia to Florida. 11 . July — Sept. v. v. From 
four to six feet high 3 flowers large, yellow. 
648. HELIOPSIS. Pers. syn. 2. p. 4 73. 
l.H. foliis oppositis ovatis serratis triplinervibus. Pers. 
syn. 2, p. 473. 
Buphthalmum helianthoides. Willd. sp. pl. 3. p. 223 6. 
Helianthus laevis. Sp. pl. 1278. 
Rudbeckia oppositifolia. Sp.pl. 1280. 
Silphium solidaginoides. Sp. pl. 1302. 
On the banks of rivers, and in rocky shady places : Pen- 
syl vania to Carolina. I/ . Aug. — Oct. v. v. A tall 
plant, resembling a species of Helianthus. 
649- BUPHTHALMUM. Gen.pl. 1231. 
X. B. foliis oppositis cuneato-lanceolatis carnosis incanis, 
petiolis bidentatis, caule fruticoso. — Willd. sp. pl. 3. 
p. 2229. 
Icon. Dill. elth. t. 28. f. 4. Pluk abn. t. 115. f. 4, 
Galesb.Jl. car . 1. t. 93. 
563 
Millefolium t 
tomentosdo 
helianthoides . 
IceviSo 
frutescenSo 
