388 DESCRIPTIONS OF NEW SPECIES 



Madariopsis *Chilensis; biennial, glandular and hirsute; leaves linear, entire, 

 sessile; flowers disposed in an irregular, small corymb, or raceme. 



Hab. Chili. (Dr. Styles.) Probably near Valparaiso. Apparently biennial ; twelve to eighteen 

 inches high. Stem simple. Radical leaves very hirsute, those of the stem are also thickly clothed 

 with glanduliferous hairs ; sepals embracing the fruit, the summits free, very hirsute on the back as 

 well as glandular, villous on the margin, twelve to fourteen, with the same number of trifid rays. 

 Interradial involucrum shorter than the outer, composed of separate lanceolate leaves. The habit 

 is exactly that of Madaria racemosa, or nearly so, but the achenia are black, and remarkably 

 tubercular; those of the disk numerous, the exterior ones curved. Stigmas short, slightly pubescent, 

 and somewhat acute. — I introduce this plant to complete, as far as I am able, the history of the 

 section Madie^e. 



*ANISOCARPUS. 



Capitulum many -flowered, heterogamous; rays feminine, about twelve, ligu- 

 late, flat, exserted, smooth, the apex dilated and trifid. Discal florets smooth, 

 hermaphrodite, sterile, five-toothed, campanulate. Stigmas filiform, acute, 

 hirsute, exserted. Involucrum subglobose, the sepals in a single series, cari- 

 nate, embracing the fruit, the points free and acute. Receptacle flat, smooth, 

 with a single row of scales between the ray and disk, the centre naked. 

 Achenium of the ray compressed, granulated, naked, without angles; those 

 of the disk abortive, linear, crowned with a small, chaffy pappus of five to 

 eight short, lacerated, or fimbriated scales. — Hirsute, perennial herbs, with 

 linear leaves, entire or denticulated, below opposite, above alternate. Flow- 

 ers yellow, rather conspicuous, in a paniculated, few-flowered corymb. — 

 Nearly allied to Madaria, of which it has entirely the aspect, but the flow- 

 ers less conspicuous. Approaches Calycadenia by the fruit, but very differ- 

 ent in habit, and with the rays of Madia. — (The name from 'aviaos, unequal, 

 and xaprfos, fruit. Alluding to the different characters of the achenium in 

 the ray and disk.) 



Anisocarpus * Madioides. 



Hab. On the banks of the Oregon, among rocks, in shady forests, at the outlet of the Wahlamet; 

 rather rare. Hirsute with long and short hairs, the stem and involucrum also glandular. Radical 

 leaves oblong, linear, or oblong-lanceolate, remotely serrulate, rather crowded, three or four inches 

 long, about half an inch wide. Stem simple, most hairy at the base. Stem leaves linear, sessile, 

 entire, acute, diminishing in size upwards; the stem above attenuated, about eighteen inches or 



