Tas. 8380. 
PTERONIA Incana. 
South Africa. 
ComposiTakE. ‘Tribe ASTEROIDEAE. 
Preronta, Linn.; Benth. et Hook. f. Gen. Plant. vol, ii. p. 259. 
Pteronia inecana, D(C. Prod. vol. v. p. 358; Harv. in Harv. et Sond. Fl. Cap, 
vol. iii. p. 100; affinis P. glaucae, Thunb., sed foliis planis, involucri 
bracteis anguste lanceolatis subacutis marginibus hyalinis differt. 
Frutex ramosissimus, 1-1°3 m. altus; rami graciles, elongati, leviter angulati 
vel subteretes, glabrescentes; ramuli cinereo-lanati. Folia opposita, 
linearia vel oblanceolato-linearia, basin versus angustata, obtusa vel sub- 
acuta, 0°5-2 cm. longa, 1-3 mm. lata, plana, cinereo-lanata. Capitula 
numerosa, circiter 8-flora, obconica, circiter 2 cm. longa et lata, flava. 
Involucri bracteae 4-5 seriatae, anguste lanceolatae vel lineari-lanceolatae, 
subacutae, 2°5-8 longae, 1-175 mm. latae, margine hyalinae, glabrae. 
Corollae tubus 7-8 mm. longus, apice 1°75 mm. diametro, ad basin leviter 
angustatus, glaber; lobi 6, lanceolati, subacuti, 3°5 mm. longi, 1 mm. lati, 
glabri. Antherae 4 mm. longae. Stylus teres, 1 cm. longus, glaber, 
profunde bilobus, lobis 3 mm. longis apice triangulare stigmatosis, 
Achaenia inferne longe villosa, anguste oblongo-ellipsoidea, 3 mm. longa, 
1°5 mm. diametro. Receptaculum breviter setosum. Pappi setae numerosae, 
8 mm. longae, barbellatae—P. wantholepis, DC. 1.c. Hupatorium cinereum, 
Linn. f. Suppl. p. 354.—J. Hurcuinson. 
The genus Pteronia, to which the subject of our illustra- 
tion belongs, includes upwards of sixty species of small dry 
or glutinous South African shrubs. The species here figured, 
P. incana, has a wide range within the area occupied by 
the genus, and extends from Lesser Namaqualand in the 
north-west to the Albany district in the south-east. Its 
nearest ally is P. glauca, Thunb., from which our plant is 
readily distinguished by its flat and usually longer leaves 
and by its narrower glabrous involucral bracts which have 
hyaline margins. This, the first species of the genus to be 
figured in this work, for the plant figured at t. 1697 as 
P. pawiflora is a Helipterum, is a favourite in Riviera 
gardens, where it flowers freely from March till May and 
forms a bush some three feet high, which is attractive alike 
for its wealth of blossom and its remarkably sweet peach- 
Jong, 1911, 
