teas, single-flowered. Flowers large, handsome, fragrant. 

 Involucre broadly ovate or oval, imbricated with numerous 

 subulate scales, their apices all remarkably reflexed. Flo- 

 rets of the disk deep yellow, very prominent. Corollas 

 tubular, cleft more deeply on the interior side, with the 

 five linear oblong teeth somewhat unilateral. Anthers 

 deep yellow, exserted, biaristate. Germen cylindrical. 

 Style yellow, somewhat clavate, entire. Pappus of many 

 unequal hairs, the outer being shorter and slenderer, the 

 inner longer, frequently darker-coloured ; all of them sca- 

 brous. Florets of the ray nine to twelve, rose-purple, two- 

 lipped, the inner lip very minute, of two subulate segments, 

 erect, probably in a more advanced state reflexed ; outer 

 one very long, linear, three-toothed, externally downy. 

 Anthers small, abortive. Germen, style, stigma, and pappus 

 as in the florets of the disk. Receptacle plane, set with 

 small, soft, erect spinules. 



Among the many interesting plants raised last year 

 (1830) from the Peruvian seeds liberally communicated to 

 the Glasgow Botanic Garden by our valued friend, Mr. 

 Cruckshanks, are two species of the family of Composite, 

 and of the division Labiatifloile, agreeing in so many 

 points with Mr. Don's Genus Centroclinium (Linn. Trans, 

 v. 16, p. 254,) that I cannot suppose they are other than 

 the same: yet in the nature of the spinules of the receptacle 

 there is a remarkable difference ; for whereas Mr. Don de- 

 scribes them as harsh and rigid aculei (whence he has 

 derived the Generic Name) ; in our plant they are soft and 

 inconspicuous. 



Mr. Don suggests that the Onoceris salicifolia of Hum- 

 boldt and Kunth may be a species of this Genus, an opinion 

 in which I quite agree with him, though the little aculei of 

 the receptacle have been overlooked in the description. In- 

 deed, except in the narrow and more entire leaves, it seems 

 to agree with the present species, possessing, in fact, the 

 peduncle and involucre of the present individual, and the 

 foliage of the subject of our next plate. 



Our plants of C. rejlexum were cultivated in the stove, 

 and produced their handsome, fragrant flowers, smelling like 

 Hawthorn, late in the Autumn, when they died, without pro- 

 ducing seed. Mr. Murray considers it to be truly annual. 



Fig. 1. Section of an Involucre and Receptacle. 2. Floret of the Disk. 3. 

 Inner side of the extremity of a Floret from the Disk, showing the deeper 

 cleft. 4. Inner view of the Anthers. 5. Floret of the Ray. 6. Portions oi 

 the Pappus: — Magnified. 



