550 LXXI. COMPOSIT, | Vidorella 
17. NIDORELLA Cass. ; Benth. & Hook. f. Gen. Pl. ii. p, 282. 
1. N. resedifolia DC. Prodr. v. p. 322 (1836); Harv. & Sond. 
Fl. Cap. iii. p. 88 (vesedefolia) (1865). 
Var. humilis. Rootstock creeping, wiry-woody, perennial ; 
stems 6 to 13 in. high, erect or ascending, simple below from near 
the base. 
Huiitia.—F lowers yellow. In bushy pastures on the right bank of 
the river of Lopollo, abundant; fl, and fr. Oct. and Dec. 1859. 
No. 3978. Flowers yellowish. At the outskirts of forests near 
* Catumba ; fl. Dec, 1859. No. 3979. A form with toothed or almost 
laciniate-pinnate leaves collected in the same place. Catumba ; fl. and 
fr. Jan. 1860. No. 3980. 
2. N. solidaginea DC., U.c.; Harv. & Sond., l.c., p. 89. 
Microglossa angolensis, var. linearifolia O. Hoftm. in Bol. Soe. — 
Brot. xiii. p. 22 (1896), quoad Nos. Welw. 
Hvuitta.—Flowers yellow. In wooded sandy meadows near 
Lopollo ; fl. and fr. Dec. 1859. No. 3418. In wooded thickets from 
Ferrio da Sola towards Jau ; fl. and fr. April 1860 ;.seen only in that 
locality. No. 3419. 
18. MARSEA Adans. Fam. Pl. ii. p. 122 (1763). 
Conyza Less. p.p. (1832) ; Benth. & Hook. f. Gen. Pl. ii. p. 283 ; 
non L. 
In the first edition of the Species Plantarum Linneus had 
eleven species of Conyza, none of which are now retained therein ; 
they belong to Vernonia, Sericocarpus, Pluchea, Inula, and 
Neurolena. In the tenth edition of the Systema Nature, 
published in 1759, Linneus had two additional species, now 
referred to Vernonia and Pluchea respectively; in later publica- 
tions, posterior to Adanson, l.c., he had nine other species of 
Conyza, belonging to Vernonia, Placus, Pterocaulon, and Phag- 
nalon; the whole of the Linnean species, therefore, disappear 
from Conyza. Marsea was established by Adanson as a genus, 
with Baccharis ivefolia L. (C. ivefolia Less.) as its type, and 
was differentiated from Conyza L. (Conysa). 
1, M. persicifolia. 
Erigeron persicifolium Benth. in Hook. Niger FI. p. 430 (1849). 
Conyza persicefolia O. & H. in Oliv. Fl. Trop. Afr, iii. p. 312. 
GoLunco AxLtTo.—An undershrub, 2 to4 ft. high ; branches fistular, 
spreading, often irregularly bent or pendulous ; flowers very pale- 
ochroleucous ; ligulate florets absent. At the outskirts of thickets 
near Canguerasange, sporadic ; fl.and fr. end of Oct. and 1 Dec. 1854. 
No. 3916. 
Ampaca.—A tree-shaped shrub, 5 to 8 ft. high ; the trunk scarcely 
4 in. thick, erect or leaning, patently branched towards the apex ; 
branches elongated, almost virgate. Ligulate florets absent; disk- 
florets yellow, concealed in the pappus as it develops. In thinly-bushy 
places near Ambaca ; fl. and fr. beginning of Aug. 1856. No. 3915. 
2. M. egyptiaca, 
Erigeron egyptiacum L. Mant. Pl. (i.), p. 112 (1767). Conyza 
