Part 1, 1918] RUBIACEAE 
Stipules spatulate or rounded; flowers not secund; calyx-lobes 
0.5-1 mm. long. 
Calyx-lobes oblong-obovate; inflorescence dense. 
Calyx-lobes narrowly triangular: inflorescence lax. 
Calyx-lobes, at least some of them, 5—8 mm. long. 
Corolla-tube 7-8 mm. long; calyx-lobes, at least some of them, 
oval, foliaceous. 
Corolla-tube 15-17 mm. 
V. HONDURENSES 
A single species. 
VI. STELLATAE 
Corolla strigillose outside; leaves hirtellous and scaberulous. 
Corolla glabrous outside; leaves glabrous. 
Flowers 5-parted. 
Flowers 4-parted. 
Leaves sessile. 
Leaves petiolate. 
Calyx-lobes deltoid, minute. 
Calyx-lobes oblong or ovate. 
Capsule oblong-pyriform, nearly twice as long as thick; leaf- 
blades long-attenuate at the base. 
Capsule globose or pyriform, little if at all longer than thick; 
leaf-blades cuneate at the base. 
Capsule globose, about 7 mm. long. 
Capsule pyriform, 10-15 mm. long. 
VII. TINIFOoLIAE 
A single species. 
VIII. PEDICELLARES 
Corolla glabrous outside. 
Leaf-blades 3-6 mm. wide; petioles 1-2 mm. long. 
Leaf-blades mostly 10-15 mm. wide; petioles 4-7 mm. long. 
Corolla pubescent outside. 
Flowers 4-parted. 
Flowers 5-parted. 
Leaves glabrous. 
Leaves hirtellous. 
Leaf-blades 3-6 mm. wide, cuneate at the base. 
Leaf-blades 7-13 mm. wide, rounded or truncate at the base. 
IX. ODORATAE 
Inflorescence few-flowered, the flowers clustered at the ends of the branches 
or subracemose. 
Flowers racemose or in axillary 3-flowered cymes; leaves 1.8-3 cm. 
wide. 
Flowers clustered at the ends of the branches; leaves 1-2 cm. wide. 
Inflorescence many-flowered, cymose-corymbose. 
Seeds exalate; leaves scabrous on the upper surface, obtuse to sub- 
cordate at the base; calyx-lobes oblong-linear. 
Seeds alate; leaves glabrous on the upper surface, acute at the base; 
calyx-lobes lanceolate or ovate. 
X. LAURIFOLIAE 
Corolla glabrous outside or nearly so. 
Leaves sessile, obtuse or clasping at the base. 
Calyx-lobes linear-subulate, 1.5—2 mm. long; corolla-tube 9-12 mm. 
long. 
Calyx-lobes deltoid, about 0.5 mm. long; corolla-tube 7 mm. long. 
Leaves petiolate, acute at the base. 
Leaf-blades 2.5—-5 cm. long, glabrous. 
Leaf-blades mostly 7-16 cm. long, sparsely short-pilose beneath. 
Beale 1-2 em. long; corolla-lobes less than half as long as the 
tube. 
Petioles 2—4 em. long; corolla-lobes half as long as the tube. 
Corolla densely pubescent outside. 
Calyx glabrous. 
Calyx densely pubescent. 
Calyx-lobes broadly deltoid, usually much less than ] mm. long. 
Lobes of the corolla nearly as long as the tube. 
Lobes of the corolla one third as long as the tube or shorter. 
long; calyx-lobes linear-lanceolate. 
47. 
48. 
49. 
50. 
Sill: 
322 
oS. 
54. 
Bile 
56. 
Sie 
58. 
59. 
60. 
61. 
62. 
63. 
64. 
apse 
bh ow 
47 
linguiformis. 
costaricensis. 
aetheocalymna. 
. calycosa. 
hondurensis. 
. brachycarpa. 
. subglabra. 
. yamuriensis. 
stellata. 
. calcicola. 
. angustata. 
. canellaefolia. 
. tinifolia. 
. peduncularis. 
. pachyphylla. 
. pedicellaris. 
. alaternoides. 
. microphylla. 
Shaferi. 
. azuensts. 
. heterochroa. 
. odorata. 
. panamensis. 
. amplexicaulis. 
. Harrisit. 
. daphnoides. 
. pallida. 
. elegans. 
- racemosa. 
. laurifolia. 
