FLORA OF ADEN . 
£23 
Scales of the involucre 15 — 18, pluriseriate, from ovate to oblcng- 
lanceolate, acute. Receptacle naked. Corolla gradually narrowed, 
glandular. Anther-base acutely produced, apex lanceolate. 
Achenes obtusely 5-sided, with short, ascending white setae 
between the ridges. Pappus biseriate, outer of short equal, linear, 
pointed squamae, inner of white barbellate caducous setae. 
Locality .‘—-Plain of Maala, Koosaf Valley (Defl.J ; from the seashore 
to the top of the Shum Shum Range (Edgew., Hook., Anders.) ; Shum 
Shum Range (Ellenbeck, Schweinf., Busse) ; without locality (Birdw., 
Hildebrandt) . 
Distribution Yemen, Muscat, Etbai, highlands of Somaliland, 
Nile-Land. 
2. Plucliea Cass. 
Shrubs or herbs, tomentose or glutinose. Leaves alternate, dentate 
or rarely entire, sometimes pinnatifid. 
Heads usually small, in terminal corymbose cymes, or large and 
subsolitary, heterogamous, disciform, white yellow, or lilac. Outer 
florets female, in several series, fertile, filiform. Diskffloiets 
hermaphrodite, few, sterile, tubular, 5-fid. Involucre broadly ovoid or 
campanulate ; its bracts few or in many rows, imbricate, ovate or 
lanceolate, dry, rigid ; receptacle flat, naked. Corollas of the female 
flowers filiform, shorter than their own styles, their apices with 3 teeth ; 
corollas of the hermaphrodite flowers regular, tubular, the limb slightly 
widened, 5-cleft. Anthers sagittate at the base, their basal auricles 
tailed. Style-arms of the hermaphrodite flowers filiform, entire or bifid. 
Cypselas small, 4- or 5-angled. Hairs of pappus slender, rigid, in a 
single series, free, or (in the sterile cypselas) connate in groups. 
Species about 30. 
Distribution > — Tropical and subtropical. 
1. Plucliea inclica Less, in Linnsea (1831), 150 ; DC. Prodr. V, 
451; Wight 111. t. 131; Clarke Comp. Ind. 93; Hook. FI. Brit. 
Ind. Ill, 272; Benth. FI. Austral. Ill, 527 ; King and Gamble 
FI. Malay-Penins. in Journ Asiat. Soc. Beng. vol. 74, part II, 
extra N. (1905), 37 ; Prain Beng. PL 600. 
Pluchea foliosa DC. Pro dr. V, 451. 
Conyza eorymbosa Boxb. FI. Ind. Ill, 426 ; Wall. Cat. 3009. 
Conyza indica Miq. FI. Ind. Bat. II, 58. 
Baccharis indica Linn. Sp. PL 1205. 
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