718 Ericaceae. — Primulaceae. 
small, 5-parted. Corolla urceolate with 4—5 small recurved teeth. 
Ovary on an hypogynous disk, 4—5-celled; ovules crowded on a 
fleshy placenta projecting from the inner angles of each cell. Style 
rather long; stigma obtuse. Fruit a many-seeded berry. 
A small genus of only a few species, widely distributed throughout the 
Mediterranean region. 
1018. Arbutus Unedo L. Spec. Plant. I (1753), p. 395. — 
Boiss. Flor. Or. III, p. 966. — Rehbch. Ie. XVH, tab. 116 fig. I—IL. 
— Aschers.-Schweinf. Ill. Flor. d’Eg., p. 102. — Shrub 1-3 m high, 
branches straight, with rough, rusty bark. Leaves obovate to elliptical- 
oblong, 30—90 cm long, serrate, acutish or obtuse. Racemes some- 
what panicled, nodding, glabrous; berries few, 1—1,6 cm in diameter, 
rough-warty, scarlet, edible. — Flow. March to April. 
M. ma. Near Mandara, naturalized. 
Also known from the other parts of the Mediterranean region, 
Primulales. 
Herbs, shrubs, trees or vines. Leaves alternate or opposite, 
sometimes all basal: blades mostly entire. Flowers bisexual or poly- 
gamo-dioecious, variously disposed. Calyx of 4-several partially 
united sepals. Corolla of 4-several distinct or partially united petals, 
or wanting. Androecium of as many stamens as there are petals 
or sepals, and sometimes accompanied by as many staminodia, 
mainly partially adnate to the corolla. Gynoecium of 4—6 united 
carpels, or rarely more. Ovary superior, or mainly so, mostly 
1-celled. Styles distinct or united. Fruit capsular or drupaceous, 
or rarely an achene or an utricle. 
84. Primulaceae. 
Calyx usually of 5, sometimes 4, 6 or 7 divisions or teeth, free or 
rarely the tube shortly adnate to the ovary. Corolla usually regular, 
more or less devided into as many lobes or teeth as divisions of 
the calyx, imbricate and often contorted in the bud, rarely wanting. 
Stamens as many as lobes of the corolla, inserted in the tube or 
at the base, opposite the lobes. Ovary 1-celled, with 1 or more 
ovules attached to or immersed in a central placenta, usually quite 
free, thick and globular, rarely ovoid and connected with the top 
of the cavity. Style single, with a capitate stigma. Fruit a cap- 
sule, usually dehiscent. Seeds albuminous. — Herbs or very rarely 
undershrubs. Leaves opposite or alternate, undivided except when 
growing under water, without stipules. Flowers axillary or terminal. 
