132 S. Kurz — Contributions towards a [No. 2, 



Hedyotis, L. 



Conspectus of Species. 



* Capsule loculicidally dehiscent. 

 Subg. 1. Oldmlandia, L. Capsule more or less hemispherical or obsoletcly 2-lobcd, 

 opening loculicidally. Annual, rarely perennial herhs. 



* Prostrate or diffuse herbs. Flowers solitary, or in cymes or clusters in the axils 

 of the leaves {rarely also terminal). Moot sometimes turning perennial. 

 X Leaves more or less oval, petioled. 



Flowers solitary, sessile or nearly so S. tinervia. 



X X Leaves linear to narrow-linear, rarely lanceolate, more or less 



+ Flowers solitary or by 2 — 3 on an axillary peduncle. 

 Flowers solitary, on very short strong pedicels ; leaves membranous, flat, 



. . I£. ramosissima. 

 Flowers by 2 — 3, rarely solitary, on a capillary peduncle ; pedicels very long and capil- 

 lary ; leaves membranous, flat, S. biJlor<x. 



+ + Flowers by 4 or more, forming axillary and terminal clusters 

 or cymes. Leaves more or less revolute on their margins, some- 

 what rigid. 



Flowers in peduncled cymes or the cymes umbel-like, S. umbellata. 



Flowers in sessile clusters, H. angustifolia, 



* * Erect annuals. Flowers in terminal panicles or cymes, or solitary, rarely the 

 inflorescence also axillary. 

 X Leaves sessile or nearly so. 

 Leaves sagittate at the base, shortly bristly rough ; flowers pale-blue, by 3 — 4 terminal, 



and also singly from the leaf-axils ; pedicels long and capillary, S. linoides. 



Leaves linear ; corolla about an inch long, brownish purple, S. gracilis. 



X X Leaves more or less petioled, more or less tapering at the base. 

 + Calyx only } — ^ lin. long. 

 All parts sparingly pilose ; leaves acute ; cymes peduncled, axillary and terminal ; 



pedicels capillary, 3 — 4 lin. long, S. Wallichii. 



Stem villous-pubescent, the leaves often whorled at the end of the nude scape-like 

 stem ; cymes divaricate, peduncled, terminal ; pedicels capillary, 2 — 4 lin. long, 



. . H. sjyergulacea. 

 + + Calyx f — 2 lin. long. Flowers in racemes or cymes, terminal 

 and in the axils of the upper-leaves. 

 Glabrous, more or less succulent ; flowers slenderly pedicelled ; capsule not winged, 



the crowning calyx-lobes very short, H. paniculata. 



Stems, and nerves beneath, shortly pubescent ; flowers sessile or nearly so ; capsule 

 more or less compressed and winged, the crowning lobes nearly a line long. 



..H. Andamanica. 

 * * Capsules opening septicidally. 

 Subg. 2. Limetia, WA. Capsule opening septicidally at the apex by a gaping 

 short slit, more or less truncately hemispherical and obscurely 2.1obed. Scandent, 

 diffuse or erect perennials. Flowers in small heads, forming axillary and terminal 

 peduncled cymes or panicles. Corolla often villous within. 

 Glabrous or pubescent ; flowers sessile or nearly so ; nerves of leaves prominent, 



. . //. eapitellatci. 



