232 Lxx. RUBiACE^ (hiern). IDiodia. 



jile, scabrous especially above, ranging up to 1-2 by -J-l in., lateral 

 veins about 4-5 pairs, making an acute angle with the midrib, mar- 

 gins scabrid-rugose or subserrulate ; stipules of usually 5 slender setae 

 rather shorter than the fruit arising from a short truncate base. 

 Flowers sessile or subsessile, several or few together, tetramerous. 

 Calyx green. Corolla white. Fruit ^-^ in, long. — Sperrnacoce serru- 

 lata, P. Beauv. Fl. Owar. p. 39, t. 23 ; f Biodia littoralis, Wawra and 

 Peyritsch Sert. Beng. p. 39 (1860). 



ITpper Guinea. Sierra Leone, Afzelius! Fernando Po, Th. Vogel! Mann I 

 Niger Expedifion at Nupe, Barter! Lagos, Barter I Cnpe Coast, Brass! 

 19*116 Ziancl. Niamniam-land, at Boddo, Schweivfurth! 

 Xiower Guinea. Congo, Chr. Smith ! Bengnella, Wawra. 

 IVIozamb. Sistr. Zanzibar Island, AlV/t/ Hildehrandt ! 

 Occurs also in Madagascar, the West Indies, Guyana, Panama, etc. 

 Apparently identical with Diodia scandens and D. sarmentosa of Swartz. 



6. I>. vagrinalls, Benth. in Hook. Niger Fl. p. 424. A glabrous 

 stiff herb with procumbent leafy branches. Leaves linear or linear- 

 oblong, somewhat pointed at the apex, scarcely narrowed at the sessile 

 base, rigid, scabrous on the margin, 1-1^ by ^^ in., lateral veins 

 obsolete ; stipules truncate, short, with 3 subulate rigid set^, connate 

 and sheathing below. Flowers solitary, sessile. Calyx lobes about 6. 

 Corolla ^ in. long. 



Upper Guinea. Sierra Leone, Afzelius! at Grand Bassa and on the Nun, creep- 

 ing on the sands, Th. Vogel! Brass, Barter! 



71. GAILLONIA, A. Rich. ; Benth. et Hook. f. Gen. PI. ii. p. 144. 



Calyx-tube oblong or oval ; limb consisting of 2 foliaceous teeth or 

 various, persistent. Corolla elongate funnel-shaped or shortly salver- 

 shaped ; throat naked ; lobes 4-5, ovate, spreading, valrate in the bud. 

 Stamens 4^5, inserted at the throat of the corolla ; filaments short, 

 some sometimes almost obsolete ; anthers oblong. Disk inconspicuous. 

 Ovary 2-celled ; style slender, with 2 short linear lobes ; ovules soli- 

 tary, attached about the middle to the septum, amphitropous. Fruit 

 dicoccous, oblong ; cocci indehiscent. Seeds oblong, subterete, marked 

 with a longitudinal furrow on the ventral face ; umbilicus ventral ; 

 radicle elongated, inferior. — Small rigid undershrubs with small oppo- 

 site linear or subulate sessile leaves, sheathing usually bisetose stipules 

 adnate to the base of the leaves, and small sessile or subsessile flowers 

 spicate in dichotomous cymes or axillary and terminal. 



A genus of a few species extending from North Africa to North West India. 



Besides the following species, there is in the Kew Herbarium a small specimen, 

 probably obtained in Tropical Africa, from Dr. Livingstone's Memorandum book, 

 apparently belonging to this genus ; it is without leaves and seems to be an unde- 

 scribed species. 



1. G. calycoptera, Jauh. et Spach, Illustr. PI. Or. i. p. 147, 



80. A rigid virgately branched undershrub, woody at the base, 



1-2 feet high, nearly glabrous. Branches terete, slender, canescent. 



