60 
CLASS XX. ORDER II. 
Carpi Nus. Staminate flowers: ament long-cylindric ; scales ciliate at thp. 
base ; stamens 8 to 14, somewhat bearded at the top. Pistillate flowers : strobi- 
lura loose; scales leafy, 2 flowered ; stigmas 2; nut long, .sulcata, 1-seeded. 
(horn beam.) 
ORDER XV. MONADELPHIA. 
Jatro'pha. Staminate flowers: calyx 5-leaved or wanting; corolla funnel- 
form ; stamens 10, alternately shorter. Pistillate flowers : calyx 0 ; corolla 5- 
petalled, spreading; style 3-cleft; capsule 3-celled, seed 1. (physic-nut.) S. 
Cro'ton. Staminate flowers: calyx 5 toothed ; petals 5 or wanting ; stamens 
10 to 15. Pistillate flowers: calyx 5-leaved or none ; corolla none; styles 2-cleft; 
capsule 3-grained, 3-celled, 3-seeded. S. 
Stillin^'gia. Staminate flowers : involucre hemispherical, many-floWered, or 
wanting ; perianth tubular, eroded ; stamens 2 or 3, exsert. Pistillate flowers : 
calyx 1-flowered, inferior ; style 3-cleft ; capsule 3-grained. (tallow-tree.) ^S". 
Meloth'^ria. Staminate flowers : calyx 1-flowered, 3 to 5-toothed ; corolla 
bell-form ; filaments 3. Pistillate flowers : calyx and corolla superior ; style 1 ; 
stigmas 3 ; berry 3-celled, many-seeded, (creeping cucumber.) 
Momor'^dica. Staminate flowers : calyx 5 or 6-cleft ; corolla 5 or 6 parted ; 
filaments 3. Pistillate flowers : style 3-cleft; berry gourd-like, and bursting 
elastically ; seeds compressed, (balsam apple, wild cucumber.) 
Cu'cuMis. Staminate flowers : calyx 5-toothed ; corolla 5-parted ; filaments 3. 
Pistillate flowers : calyx and corolla like the staminate ; stigmas 3, thick, 2- 
parted ; berry with pointed seeds, (cucumber, muskmelon ) Ex. 
Cucur'''bita. Staminate flowers: calyx 5-toothed; corolla 5-cleft ; filaments 
3. Pistillate flowers: calyx and corolla like the staminate; pistil 3-clefi; berry 
large, 3 to 5-celled ; seeds thickened at the margin, (gourd, squash, pumpkin, 
water-melon.) Ex. 
Rici'nus. Staminate flowers: calyx 5-parte*d; stamens numerous. Pistillate 
flowers : calyx 3-parted ; styles 3, 2-cleft ; capsules echinate, 3-celled, 3-seeded. 
(palma christi, or castor-oil plant.) Ex. 
Si'cYos. Staminate flowers : ament imbricate ; calyx 5-toothed, teeth subulate ; 
corolla 5-parted ; filaments 3, or perhaps 5 in 3 sets. Pistillate flowers ; style 3- 
parted ; stigmas thick, 3-parted ; fruit 1-seeded, often spinose. (single-seed cu- 
cumber.) 
Pi'nus. Staminate flowers : calyx 4-leaved. peltate ; corolla 0; stamens many ; 
anthers naked, 2, sessile ; 1-celled. Pistillate flowers : calyx in strobilums or 
cones, scales close imbricate, 2-flowered ; pistil 1 ; nut with a membranaceous 
wing, or a samara, (pine.) 
CupREs"sus. Staminate flowers: ament ovate, imbricate; calyx a peltate 
scale; corolla 0; anthers 4, sessile. Pistillate flowers : ament strobilaceous ; 
calyx a 1-flowered, peltate scale ; corolla 0; germs 4 to 8, under each scale of 
the calyx ; nuts angular, compressed, (white cedar.) 
Thu"ia. Staminate flowers : ament imbricate; calyx and corolla 0; anthers 
4, sessile. Pistillate flowers : strobilum with the scales 2-flowered ; corolla 0 ; 
nut 1, winged, (arbor vitse ) 
Phyllan'^thus. Staminate flowers : calyx 5 or 6-parted ; filaments often 
columnar ; anthers 3. Pistillate flower resembling the staminate ; nectary a 12- 
angled margin ; styles 3 ; capsules mostly 3-grained. (leaf flower.) ij 
Acaly'pha. Staminate flower : calyx 3 to 4-parted ; corolla 0; stamens 8-16. !i 
Pistillate flower : calyx 3-leaved ; corolla 0 ; styles 3 ; capsule 3-celled. (three 
seed mercury.) 
CLASS XX. DICECIA. 
ORDER II. DIANDRIA. 
Sa'lix. Staminate flowers : ament cylindric ; calyx a 1-flowered scale, with 
a nectariferous gland at the base ; stamens 1 to 6. Pistillate flowers : ament and 
calyx like the staminate ; stigmas 2 ; generally 2-cleft ; capsule 1-celled, 3- 
valved; seeds many, with egret-like down, (willow.) 
Frax"inus. Polygamous. Perfect flowers ; calyx 0, or 3 or 4-parted ; corolla 
0, or 4-petalled ; pistil 1 ; samara 1-seeded, with a lanceolate wing. Pistillate 
flowers: calyx, corolla, and pistils same as perfect, (ash.) 
Vallisne'ria. Staminate flowers : spatha ovate, 2-parted ; spadix covered with 
minute flowers ; calyx 3-parted. Pistillate flowers : spatha 2-cleft, 1-flowereJ; 
