572 LXXI, COMPOSITE. [Geigeria 
4, @. angolensis O. Hoffm., /.c., p. 85. 
Huitia.—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 palez 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 witha long seta; recep- 
tacle moderately convex, densely beset with long whitish fibrille. 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 
1860. No. 3702. 
5. @. spinosa O. Hoffm., U.c., p. 80, and in Bol. Soc. Brot. x. 
p. 175 (1893). 
MossaMEpDES.—An annual, branched, prostrate herb, with the habit 
of a Scolymus; flowers yellow, fragrant. In gravelly maritime places 
between Quipola and Giraul, not abundant, fl. July 1859. No. 3994. 
6. G. Hoffmanniana. 
Thysanurus angolensis O. Hoftm. in Engl. & Prantl, Nat. Pflan- 
zenfam, iv. 5, p. 127 (1889), and in Bol. Soc. Brot, vii. p. 229. 
Hvitia.—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 ; flowers 
yellow ; outer involucral scales thickly cartilaginous at the base, sur- 
mounted above the middle with a foliaceous 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 Vernoniacez, notwith- 
standing the yellow colour of its flowers; he recognised, however, its 
agreement with Geigeria except the shape of the style. The latter 
character is not uniform in Ge/geria as treated here and by Hoffmann; 
there are long narrow pale on the receptacle in the flowers of our 
plant such as occur otherwise in this genus. 
