326 MR. SPENCER MOORE ON THE 
CARDUUS LEPTACANTHUS, Fres., in Mus. Senckenb. ii. (1845) 
70, var. NYASSANA, v^r. nov.; caulis abunde foliolo-spinosus. 
Foliorum lobi quam ii typi insigniter minores et comparate 
latiores (sc. solemniter + 1:0 cm. long. et lat.) Capitula sum- 
mum 20 em. long. et 15 em. diam. Achænia 0:4 cm., pappi 
sete 1:0-1:5 em. long. 
Nyassaland; Buchanan, 219, 577. Myika Plateau; Miss 
Henderson. (Also, at Kew, Mt. Malosa ; A. Whyte sine no.) 
A well-marked variety, at once distinguishable from the type 
and from its var. Steudneri, Engl., which do not range so far 
south. 
CENTAUREA RHIZOCEPHALA, Oliver & Hiern, in Fl. Trop. Afr. 
iii. 438. 
Wase, Northern Nigeria; Dr. Kumm. 
PrEroTAxis RUGOSA, O. Hoffm., in Engl. Bot. Jahrb. xv. (1893) 
538. 
Loanda, Cazengo, on Monte Lau, rare ; Gossweiler, 687. 
P. eximia, O. Hoffm. l c. 539. 
Angola, near Malange towards Catombe ; Gossweiler, 1209. 
Native name “ Hácea." 
P. Autunssit, O. Hoffm. l. c. 539. 
Among high grasses near the Villa Catombe, near Malange ; 
Gossweiler, 1214. 
Dicoma Werwrirscur, O. Hoffm., in Engl. Bot. Jahrb. xv. 
(1893) 544, 
Angola, not uncommon in open forests between Catombe and 
Malange ; Gossweiler, 1211. 
Dicoma (§ Pterocoma) SUPERBA, sp. nov. Herbacea, caule e 
rhizomate crasso longifibrillifero erecto simplici vel apicem versus 
tantum breviter ramoso folioso subtereti longitrorsum multi- 
suleato brevissime sericeo-tomentoso dein glabrescente, foliis 
magnis ovatis (junioribus ovato-oblongis) obtusis basi vaginante 
amplexicaulibus in longitudinem 5-nervibus supra glabris eximie 
reticulatis subnitentibus subtus intricate membranaceo-albo- 
iomentosis tenuiter coriaceis, capitulis paucis majusculis homo- 
gamis eirca 22-flosculosis pedunculis valde abbreviatis bracteis 
involueri phylla mentientibus munitis ex axillis superioribus 
