572 Lxxi, COMPOSITE. [Geii 



4. G. angolensis 0. Hoffm., I.e., p. 85. 



HuiLLA. — A robust, branched, erect or entirely decumbent under- 

 shrub or suffruticose herb, 3 to 4 ft. high, with the habit of a 

 Centaurea ; young stem and branches winged ; leaves densely pellucid- 

 punctate, decurrent on the young branches with a broad wing, but the 

 adult stem cylindrical without wings ; capitula heterogamous, radiate ; 

 involucre invested at the base with 2 or 3 herbaceous leaves ; involucral 

 scales pluriseriate, coriaceous, quite glabrous, elongate-ovate, obtusely 

 acuminate, closely imbricate, ciliolate on the margin, the inner ones 

 gradually longer, the innermost ones scarcely shorter than the disk ; 

 flowers yellow or yellowish, paleaceous-dry ; ligulate florets uniseriate, 

 broadly linear, female, 10 to 15 in each capitulum, truncate and 

 tridentate at the apex; disk-florets hermaphrodite, compressed-tubular, 

 deeply 5-cleft, the segments lanceolate-linear or linear, rigid, strictly 

 erect, truncate and finely denticulate at the apex ; anthers long, rather 

 far exserted, terminating at the apex with elongated acuminate- 

 cuspidate straight appendages which are connivent in a cone, caudate 

 at the base, the tails rather long and acute ; filaments glabrous, 

 flattened ; style of the hermaphrodite florets moderately thickened 

 below its branching, rather pilose, the branches elongated and subulate; 

 achenes short, obconical, covered with long whitish hairs ; pappus 

 paleaceous, biseriate, the paleas of the outer row lanceolate acutely 

 acuminate and shorter than those of the inner row which are broadly 

 ovate-oblong fimbriate at the apex and tipped with a long seta ; recep- 

 tacle moderately convex, densely beset with long whitish fibrillse. In 

 sandy bushy wooded places from Lopollo towards the forests of 

 Munhino (or Monino), rather rare ; fl. and fr. April 1860. No. 3701. 

 At the outskirts of forests near Catumba ; fl.-bud beginning of May 

 18G0. No. 3702. 



5. G. spinosa 0. Hoftm., I.e., p. 80, and in Bol. See. Brot, x. 

 p. 175 (1893). 



MossAMEDES. — An annual, branched, prostrate herb, with the habit 

 of a Scolyiiius ; flowers yellow, fragrant. In gravelly maritime places 

 between Quipola and Giraul, not abundant, fl. July 1859. No. 3994. 



6. G. Hoffmanniana. 



Thysanurus angolensis 0. Hoffm. in Engl. & Prantl, Nat. Pflan- 

 zenfam. iv. 5, p. 127 (1889), and in Bol. See. Brot. vii. p. 229. 



HuiLLA. — A prostrate perennial herb, with a peculiar habit ; root- 

 stock woody, branched ; stems several, decumbent ; leaves alternate, 

 mostly secund upwards ; glandular-punctate on both faces ; flowex's 

 yellow ; outer involucral scales thickly cartilaginous at the base, sur- 

 mounted above the middle with a f oliaceous ovate-lanceolate appendage ; 

 corolla densely glandular, deeply lobed, with linear segments : anthers 

 acutely caudate at the base ; style included, deeply bifid, glandular- 

 pubescent, with cylindrical-subulate, mostly strongly cohering branches; 

 achenes not ripe. In herbaceous places sometimes flooded in summer, 

 at the outskirts of forests between Lopollo and Catumba, apparently 

 rare ; fl. April 1860. No. 3989. 



Dr. O. Hoffmann placed the genus which he established for the 

 accommodation of this species in the tribe Vernoniacea3, notwith- 

 standing the yellow colour of its flowers ; he recognised, however, its 

 agreement with Gekjeria except the shape of the style. The latter 

 character is not uniform in Geigeria as treated here and by Hoffmann; 

 there are long narrow paleae on the receptacle in the flowers of our 

 plant such as occur otherwise in this genus. 



