CONSPECTUS OF THE ORDERS CONTAINED IN 
THE SEVENTH VOLUME, 
Crass IT. MONOCOTYLEDONES. 
Embryo with a single cotyledon, Perianth usually trimerous. Leaves parallel- 
veined. Vascular bundles irregularly scattered in the stem. 
Series I. Microspermee.—Perianth (at least the inner) petaloid. Ovary 
inferior, 1-celled with 3 parietal placentas, rarely 3- or 6- celled with axile placentas. 
Seeds small, numerous, exalbuminous, 
CXXXI. HYDROCHARIDEÆ. Aquatic herbs. Flowers regular, usually unisexual, 
Outer perianth calyx-like, inner (when present) petaloid. Stamens 3-12. 
CXXXII. Burmanniacex. Terrestrial, usually leafless, herbs. Flowers regular, 
rarely irregular, Perianth petaloid. Stamens 3. 
CXXXIII. ORCHIDE®. Terrestrial or epiphytic, rarely climbing, herbs, Flowers 
usually very irregular. Perianth petaloid. Andrecium united with the gyneceum 
into a column ; anther 1, sessile or subsessile on the column. 
Series II. Epigynee.— Perianth (at least the inner) petaloid. Ovary inferior 
(half-inferior or superior in Hæmodoraceæ). Albumen copious. 
CXXXIV, Scrramiyem. Flowers irregular. Outer perianth usually calyx-like, 
inner petaloid, Stamens 1 or 5 perfect; staminodia 5 or 1. Ovary usually 3-celled ; 
Ovules 12. Seed usually arillate. Embryo in a central canal of the albumen, 
Straight or curved. 
CXXXV. Hamoporace®. Flowers hermaphrodite, regular or slightly irregular. 
Perianth petaloid, inferior or half-superior in the Tropical African genera. Stamens6, 
all perfect, Ovary superior or half-inferior. Fruit dehiscent or indehiscent. Seed. 
with embryo placed in a marginal hollow of the fleshy albumen, 
CXXXVI. Ip zs, Flowers hermaphrodite, regular or irregular. Perianth 
Petaloid, superior. Stamens 3, placed opposite the outer lobes of the perianth. Fruit 
a 3-celled capsule, with loculicidal dehiscence, Seed with embryo surrounded by 
horny albumen, 
CXXXVII. AMARYLLIDEÆ. Flowers hermaphrodite, regular or nearly so. 
Perianth petaloid, superior. Stamens 6, Fruit a 3-celled capsule with loculicidal 
dehiscence or indehiscent. Seed with embryo enclosed in the usually fleshy albumen, 
CXXXVIII. Taccacrm. Flowers regular. Perianth petaloid or subherbaceous. 
