550 Lxxi. COMPOSITE. [yido7-eUa 



17. NIDORELLA Cass. ; Benth. & Hook. f. Gen. PI. ii. p. 282. 



1. N. resedifolia DC. Prodr. v. p. 322 ^^"^fi^; Harv. & Sond. 

 Fl. Cap. iii. p. 88 (resedcefolia) (1865). 



Var. humilis. Rootstock creeping, wiry-woody, perennial ; 

 stems 6 to 1 3 in. high, erect or ascending, simple below from near 

 the base. 



HuiLLA. — Flowers yellow. In bushy pastures on the right bank of 

 the river of Lopollo, abundant ; ti. 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 ; 11. and 

 fr. Jan. 1860. No. 3980. 



2. N. solidaginea DC, I.e. ; Harv. & Sond., I.e., p. 89. 

 Microglossa angolensis, var. linearifolia 0. HofFm. in Bol. Soc. 



Bret. xiii. p. 22 (1896), quoad Nos. Welw. 



HuiLLA. — Flowers yellow. In w^ooded sandy meadows near 

 Lopollo ; fl. and fr. Dec. 1859. No. 3418. In wooded thickets from 

 Ferrao da Sola towards Jau ; fl. and fr. April 1860 ; seen only in that 

 locality. No. 3419. 



18. MARSEA Adans. Fam. PI. ii. p. 122 (1763). 



Conyza Less. p.p. (1832) ; Benth. & Hook. f. Gen. PI. ii. p. 283 ; 

 non L. 



In the first edition of the Species Plantarum Linnteus had 

 eleven species of Conyza, none of which are now retained therein ; 

 they belong to Vernonia, Sericocarpus, Pluchea, Inula, and 

 Neurolcena. In the tenth edition of the Systema Naturae, 

 published in 1759, Linnseus had two additional species, now 

 referred to Vernonia and Pluchea respectively ; in later publica- 

 tions, posterior to Adanson, I.e., he had nine other species of 

 Conyza, belonging to Vernonia, Placus, Pterocaulon, and Phag- 

 7talon ; the whole of the Linnean species, therefore, disappear 

 from Conyza. Marsea was established by Adanson as a genus, 

 with Baccharis ivcefolia L. {C. ivcefolia Less.) as its type, and 

 was differentiated from Conyza L. {Conysa). 



1. M. persicifolia. 



Erigeron persieifolium Benth. in Hook. Niger Fl. p. 430 (1849). 

 Conyza per sicif folia 0. & H. in Oliv. Fl. Trop. Afr. iii. p. 312. 



GoLCXGO Alto. — An undershrub, 2 to 4 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. 



Ambaca.— A tree-shaped shrub, 5 to 8 ft. high ; the trunk scarcely 

 ^- 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. aegyptiaca. 



Erigeron oigyptiacum L. Mant. PI. (i.), p. 112 (1767). Conyza 



