ORCHIDACEAE, 429 
LXXXVII. JuncaceaE. Fruit a 1- or incompletely 3-celled capsule with 3 seeds. A 
grass-like her 
XXXIX, PAL ACEAE. Fruit drupaceous or baccate, 1-seeded; leaves palmate or a: 
flowers on a branching spadix, usually spathaceous, Mostly single-stemmed tr 
“™* Ovaries esha naked, or rarely with a few scales instead of a tilda the 
o s generally unisexual, disposed on spathaceous spadic 
XC. Pan in heads or branched spikes; anthers stipitate; 
leaves iia penn at the keel and edges ;. ipa”) wo sladiind 
XCI. ARACEAE. Flowers monoecious, ; anthers sessile; leaves sheathing 
at the base, often net-veined; stem fleshy or tuberous. 
“* Ovaries superior, eae or apocarpous, with or without perianth, not disposed 
dices nor in glumaceous spikes 
XCII. ALISMACEAE. Seda of 6 segments, the 3 inner petiloia: carpels 3—6 or more. 
Aquatic herbs. 
XCIM. Nasapacear. Perianth wanting or of 4 scale-like herb 
1) 2 OF ‘ Aquatic herbs. 
eee 
; carpels 
“** Flowers in is oes or heads, sessile within imbricate dry bracts or eter Sg pertanth 
ntary or wanting; sect 1-celled, with a single ovule. 
XCIV. CypEracear. Each flower in the axil of 1 glume without palea; anthers basi- 
fixed; fruit a nut, the pericarp free from the seed; leaf- prea entire ; stem t trigonous, 
eeareaagr | pisos with a second bract (palea) ss gate the geen 
ers versatile; frui opsis, the pericarp generally adherent to the seed; 
Gear Sie open cones the blade; stem terete, usually hollow. 
Orper LXXX. ORCHIDACEAE. 
Perianth superior, irregular, of 6 usually petal-like segments; the 3 outer 
ones, called sepals, and 2 of the inner ones, called petals, usually similar; 
the third one, called Jabellum or lip, differing from the others in shape, 
direction or insertion. osite to the labellum, in the axis of the 
flower, is the column, consisting ste 1 or rarely 2 stamens combined with 
the style; the 2-celled anther or anthers being variously situated on the 
style itself, and each cell of the anthers sometimes Lind divided 
into 2 or 4 smaller cells. Pollen usually cohering in 1, 2 or 4 pairs of 
oblong or globular pollen-masses, tapering at one end into a ues and 
in many genera attached in pairs to a stalk or caudicle, or all coherin 
by their points or caudicles to a gland detaching itself from the rete um. 
Ovary inferior, with 3 parietal placentas. Stigma usually forming a hollow 
disk on the column, often with an erect projection in front of the anthers 
H r 
rhizome, « or by annually renewed tubers, terrestrial or epiphytes; in the 
latter case the aérial tubers (or thickened stems) are called pseudo - bulbs. 
Leaves entire, parallel-veined, usually sheathing at the base. Flowers 
usually in racemes or spikes, sometimes solitary or paniculate, with a 
bract under each flower. 
