918 Rubiaceae. 
salver-shaped; throat naked; lobes 4—5, ovate, spreading, valvate 
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 solitary, 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 opposite 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. 
1275. Gaillonia calycoptera (Decsne) Jaub. and Spach Illustr. 
Plant. Or. I (1843), p. 17 tab. 80. — Boiss. Flor. Or. HI, p. 15. — 
Aschers.-Schweinf. lll. Flor. d’Kg., p.83 no. 492. — Sickenberg. Contrib. 
Flor. d’Eg., p. 262. — Spermacocce calyptera Decsne in Ann. Science. 
Nat. Sér. 2, Vol. Il, p. 267. — A rigid virgately branched undershrub, 
woody at the base, 30—60 cm high, nearly glabrous. Branches terete, 
slender, canescent. Leaves narrowly linear, rather fleshy, sessile 1 to 
2 cm long, margins revolute; sheaths of the stipules very short, setae 
usually 2 or of the lower leaves obsolete, short. Flowers about 4 
to 5 mm long, subsessile, solitary or few together, sheathed at the 
base by a pale calyx-like shortly 6-cleft involucre of 2—3 mm, 
arranged in simple and alternately branched terminal spikes; teeth 
of the involucre ovate, subacute. Calyx-teeth 2, foliaceous, pale, 
elliptical, narrowed at both ends, 2mm long; the 2 other teeth 
minute or obsolete. Corolla shortly salver-shaped, exceeding the 
calyx; lobes 4 rarely 5, rather small. Stamens 4—5, 2—3 with 
short filaments, the other 2 subsessile. Style as long as the corolla- 
tube, glabrous, bifid with short slender lobes. Fruit, including the 
calyx-teeth, 5—6 mm long. — Flow. March to April. 
D. a. sept. Cairo; *Ain Misi; Wady Dakhel. 
Locai name: hedenei (Schimper). 
Also known from Tropical Africa and Arabia Petraea. 
517. (3.) Rubia Linn. 
Calyx-tube subglobose; limb obsolete. Corolla rotate or sub- 
campanulate; lobes 5, rarely 4, valvate in the bud. Stamens 5, 
rarely 4, inserted on the tube of the corolla; filaments short; anthers 
oblong. Disk shortly cushion-shaped. Ovary 2-celled or towards 
the base or by abortion 1-celled. Style bilobed, short; stigmas 
