flora neotropica - CNCFlora

Systematic Treatment 89
Type. Suriname. Brokopondo Distr.: Browns-
berg Nature Park, 21 Jan 1978 (fl, fr), Roberts
LBB16303 (holotype, NY). Fig. 138.
Local name. Guyana: bokobokotokon.
This species, closest to Hirtella araguariensis
is distinguished by the larger, more coriaceous
leaves, the hirsutulous dark pubescence of the
inflorescence, and the less grouped flowers of the
inflorescence.
7-11.3. Hirtella liesneri Prance, sp. nov. Type.
Venezuela. Tachira: Rio San Buena, 10 km W
of La Fundaci6n, 7?47'N, 71046'W, 13-15 Mar
1980 (fl), R. Liesner et al. 9633 (holotype, NY;
isotypes, MO, VEN). Figs. 19, 136.
Species H. araguariensi affinis, inflorescentiis
Small trees to 3 m tall, the young branches puberulis versus basim hispidis, bracteolis glanglabrous,
becoming lenticellate with age. Leaf duligeris, foliisque chartaceis diversa.
lamina oblong to oblong-lanceolate, coriaceous, Tree 7 m tall, the young branches sparsely his-
21-27 x 6-9 cm, rounded to subcordate at base, pid, becoming glabrous with age. Leaf lamina
acuminate at apex, the acumen 1-5.5 cm long, oblong, chartaceous, 10-15 x 3.5-5 cm, subglabrous
beneath except for a few stiff appressed cordate at base, acuminate at apex, the acumen
hairs on venation; midrib prominulous and gla- 10-15 mm long, the lower surface with sparse
brous above; prominent and with sparse ap- appressed hairs, especially on venation; midrib
pressed pubescence beneath; primary veins 15- prominulous above, prominent and appressed
18 pairs, prominulous above, prominent be- pubescent beneath; primary veins 12-16 pairs,
neath; petioles 8-10 mm long, rugulose, with ap- prominulous on both surfaces; petioles ca. 2 mm
pressed pubescence of stiff long hairs, terete, long, terete, sparsely hispid when young. Stipules
eglandular. Stipules linear-lanceolate, persistent, linear, persistent, ca. 3 mm long, eglandular. In-
7-9 mm long, eglandular, appressed pubescent. florescences ofterminal and axillary panicles, with
Inflorescences of little-branched panicles with a a long central rachis and very short 3-5 flowered
central rachis and small groups of flowers on lateral branches, giving a racemose appearance,
short branches and solitary flowers; the rachis 20-22 cm long, the rachis puberulous, the lower
dark brown-tomentellous. Bracts and bracteoles part sparsely hispid. Bracteoles triangular, mem-
3-6 mm long, lanceolate, persistent, appressed branous, the apex terminating in a stalked gland.
tomentellous, with few sessile glands on margins Flowers 6-7 mm long. Receptacle campanulate,
of most bracteoles. Flowers 5-7 mm long, soli- sparsely hispid on exterior, glabrous within extary
or in small clusters on central rachis. Re- cept for ring of deflexed hairs at throat; pedicels
ceptacle campanulate, appressed hirsutulous on 2-4 mm long. Calyx lobes five, acute, eglandular,
exterior, glabrous within except for pilose de- sparsely hirsute on exterior, puberulous within.
flexed hairs around throat. Calyx lobes five, acute, Petals five, glabrous. Stamens six, unilateral, the
appressed hirsutulous on exterior, gray-tomen- filaments far exceeding calyx lobes. Style hirsute
tellous within, eglandular. Petals five, pale pur- on lower third. Ovary inserted at mouth of reple,
glabrous. Stamens six, unilateral; filaments ceptacle, pilose. Young fruit ellipsoid; exocarp
far exceeding calyx lobes. Style pilose on lower
sparsely appressed pubescent, becoming glaportion,
glabrous above. Ovary inserted near to brous with age.
mouth of receptacle, pilose. Fruit ovoid, ca. 3 Habitat. Primary forested area on sandy soil,
mm long, 1.8-2.5 cm broad, appressed-hirsu- 700-1000 m.
tulous on exterior; mesocarp thin, fleshy; endo- This species is quite distinct in its inflorescarp
thin, hard-bony, densely hirsute within. cence, and is one of the few hirtellas with a shortbranched
Additional specimen examined. GUYANA. Puruni,
elongated paniculate inflorescence that
2 Apr 1953 (fr), J. Boyan 75 (FD 7749) (NY).
resembles a raceme. It is probably closest to Hirtella
araguariensis from which it differs in the
sparsely hispid to puberulous (not tomentellous)
inflorescence, the larger branches and pedicels,
the fewer glands on the bracteoles, and the larger
chartaceous leaves.
7-13. Hirtella insignis Briquet ex Prance, Fl.
Neotrop. Monogr. 9: 279. 1972.
Distribution
(Fig. 135). This species, described
from just two collections, appears to be quite