flora neotropica - CNCFlora

Systematic Treatment 85
21. Primary veins 8-10 pairs; tertiary venation prominulous;
ovary inserted at mouth of receptacle; fertile stamens 6.
64. H. sprucei.
17. Pedicels 1-3 mm long, thick; leaves hirsute beneath or glabrous with hirsute
margin and midrib; bracteoles with glandular apex and often sessile glands.
22. Leaves bullate above, with distinctly impressed venation, secondary venation
and reticulations extremely prominent beneath. 65. H. lancifolia.
22. Leaves not bullate above, the venation prominent or plane, secondary
venation and reticulations prominulous only beneath.
23. Leaves acuminate at apex, the lower surface glabrous to sparsely hirsute.
66. H. burchellii.
23. Leaves usually mucronate at apex, the lower surface densely hirsute
or glabrous.
24. Inflorescence densely tomentose; leaves mucronate at apex, hirsute
beneath. 67. H. mucronata.
24. Inflorescence sparsely puberulous; leaves acuminate at apex, glabrescent
beneath. 56. H. racemosa.
14. Bracts and bracteoles with numerous stipitate glands; pedicels eglandular.
25. Receptacle cylindrical, elongate.
79. H. couepiiflora.
25. Receptacle campanulate.
26. Leaves bullate above, with impressed venation. 21. H. bullata.
26. Leaves plane, not bullate above, with plane or prominulous venation.
27. Leaves orbicular, rounded to retuse at apex; pedicels 7-20 mm long.
68. H. longipedicellata.
27. Leaves oblong to elliptic, acuminate at apex; pedicels 4-11(-15) mm long.
28. Stipules bearing numerous stipitate glands.
69. H. glandistipula.
28. Stipules eglandular.
29. Inflorescence short, compact, densely flowered, 3-7 cm long; calyx
bearing numerous glands; leaves drying gray. 70. H. martiana.
29. Inflorescence lax, 3-28 cm long; calyx eglandular or the glands scarce;
leaves drying green to brown.
30. Calyx lobes 5-6 mm long; stamens 7-8; flowers 8-9 mm long.
82. H. angustifolia.
30. Calyx lobes 1.5-4 mm long; stamens 3-6; flowers usually 4-6 mm
long (7-9 mm in H. santosii).
31. Young branches and lower part ofinflorescence rachis hispidsetose.
32. Leaves 2.5-6.5 cm long; inflorescence 3-5 cm long.
71. H. pimichina.
32. Leaves 6-15 cm long; inflorescence 6-28 cm long.
33. Leaves entirely glabrous beneath, dried material with
silver metallic sheen. 72. H. subscandens.
33. Leaves hirsute beneath, especially on principal venation,
dried material without silver metallic sheen.
34. Bracteoles oblong, broad toward base, chartaceous,
with short-stalked glands, the apices terminating
in a short-stalked gland.
25. H. paniculata.
34. Bracteoles linear-lanceolate, coriaceous, with
long-stalked glands, the apices always terminating
in a long-stalked gland. 73. H. hispidula.
31. Young branches tomentellous to puberulous; lower part of
inflorescence glabrous to puberulous or tomentellous.
35. Inflorescence tomentose or tomentellous.
36. Inflorescence tomentellous, 4.5-27 cm long, leaves
broadest above middle, primary veins 8-12 pairs;
bract glands predominantly stipitate; stipules 2-3
mm long.
74. H. silicea.
36. Inflorescence tomentose, 6-10 cm long; leaves
broadest at middle, primary veins 15-19 pairs; pedicels
5-6 mm long; bract glands predominantly sessile;
stipules 4-5 mm long. 22.1. H. santosii.