i)IANDPJA. MONOGYNIA. 5 



16. COLLINSONIA. Nutt. Gen. 26. 



[la honor of Pctei^ Colliiison,oi London; a patron of botanical science.] 



Cal. bilabiate; upper lip 3 toothed, lower bifid. Cor. unequally 5 lobed; lower lobe fiinged. 



C. CAivADEivsis. Ph. Leaves broad, ovate, smooth^ panicle compound, terminal. 

 r»','^o— Knot- root. Hor.seweed. Horsebslm. Richweed. 



FL Middle of July till September. Fr. mat. Beginuing of October. 



Huh. Borders of rich woodland.s: common. 1 to 3 feet high: fiower.s yellow. 



Obs. It rarely Derfects more than one seed, which is !ar?,'e and globular. Schospf enumerates several dis- 

 ease.s in which tliis plant in useful; but it is not much employed. The large soft leaves are sometimes used 

 in dressing blisters. 



IB. Flowers superior, a. Complete. 



17. CIRC^A. Natl. Gen. 27. 

 [Fancifully named, from Circe, the fabled enchantress of antiquity.] 

 Cal. 2 leaved. Cor. 2 petalled. Caps, ovate, hispid, 2 celled, not opening. 

 C. CAXASEXsis. 3Iuhl. Stem erect; leaves opposite, ovate, toothed, opake, somewhat glabrous. 

 'Synon. C. lu.tetiana.- TPIM. &cr. l-ii<'»o— Enchanter's Nightshade. 



FL Beginning of July. Fi\ mat. Latter end of Augu.st. 



Hub. Moist woodlands, and shaded places: common. 12 to 18 inches high: flowers reddish white. 



Obs. Schcepf, who seems to have found medical virtues in a great number of our plants, says the leaves 

 of this make a good cataplasm for hceinorrhoidal tumors. 



b. Floivcrs incomplete- 



13. FRAXINUS. mat. Gen. 781. 



[The Latin name of the Ash tree: Etymology obscure.] 



Pohj^cmoiis: Cal. 0, or 4 parted. Cor. 0, or 4 petalled. Samara 1 seeded; w"ing lanceolate. 



F. Americaxa. Mx. Arb. Folio'espetiolate, oval-lanceolate, acuminate, slightly toothed, glaucous beneath. 



Synon. F. discolor. 3tuhl. F. alba. Marshall. F. acuminata. Ph. Vutgo—Wb'iie Ash. 



Pi. Beginning of May. Fr. mat. 



Hub. Woodlands; low meadow grounds; fence rows, fijc. dommon. 40, to 60 or SO feet higlj. 



06s. Tlie leaves in Michaux's plate (Arhrcs Forest.) do not exact!}'- correspond with my specimens. 

 This tree is very valuable for its timber; which is much used by wheelwrights, coach-makers, &c. 



F. sAMBUCiFOLiA. Mx.Arb. Folioles sessile, ovate-lanceolate, serrate, rounded at base; branches dotied- 

 Synon. F. nigra. Marshall. FwZgo— Black ash. Eklerleaved ash. Water asli. 



Fl. Last of April. Fr. mat. 



Hob. Wet, low grounds; rivulet'and creek sides: not so common. 20 to 40 feet hi.^h. 

 Oi's. This species is neither so larg-e nor so valuable as the foregoing. 



ID. ANTHOXANTHUM. NvM. Gen. 7i. 



[Gr. Anthos, a flower, and Xanthos, yellow: the spikes of flowers inchning to that color.] 



L'al. 2 valved, 1 flowered. Cor. 2 valved, acuminate, awned from near the base. Stain, much exserted. 



A. ODORATUM. Ell. Spike oblong, ovate; flow^srs i^ub-pedunculate, longer th?.n the awn. 

 Fw/go— Sweet-scented vernal grass. 



Fl. Middle of May, and after. Fr. mat. Latter end of June, and after. 



//(i&. Meadows, and borders of woodlands; common. 12 to 18 inches hi?h. 



Obs. This grags emits a very grateful odor, when cut, and partly dry. It is a native of Europe : but has 

 become extensively naturalized here. In all botanical works, arranged a(;cording to the Sexual Siiste.m, I 

 think this plant ought to be placed in the class Diav.dria; for it is there, undoubtedlv, the student wcuhK 

 first look lor it. 



