CALLITRICHACEAE 805 
VERNAE 
Fruit manifestly pedicelled : leaves E 
Fruit about 0.8 mm. er Styles Sree 
1. C. terrestris. 
Fruit about 0.7 mm. styles deciduous. 2. C. Nuttallii. 
Fruit essentially sessile. 
tyles much shorter than the fruit. 3. C. palustris. 
Styles fully as long n the fruit. 
Aquatic: fruit 1 mm. broad. 4. C. heterophylla. 
Terrestrial: fruit "0. 5 mm. broad. 5. C. peploides. 
II. AUTUMNALES 
a d with leaf-blades notched at the apex. . 6. C. autumnalis. 
1. S Raf. Terrestrial, "de iier in drying, the foliage scaleless: 
leaf dades eedem 2-3 mm. long: fruit broader than long. [C. Austin nii 
Engelm.]—Damp shaded soil, various disi 
inces, rarely a Plain, ' Ala. to Tex., 
Mo., Conn., and Va.—(M ex. )—Sum.-fall. : 
2. C. Nuttalli Torr. UNA, = fo Et 
; p 
fruit broader than long.—Moist soil, Coastal 
Plain and un T adj. provinces, Ala. 
to La. and oa eile um. 
3. L. e tie, the fol 
scaly: blades oe the submerged leave RISO. 
those of the emersed ones spatulate, shorter 
than the submersed ones: Ad 
2 seales: fruit obovoid, about 1.5 te long. 
[C. verna WATER-CHICKWEED 
Ponds and streams, various provinces, U. 8. and Can.—(S. A., 0. W. )—Spr.- 
4. C. heterophylla Pursh. Aquatic or rarely oe A apis of the sub- 
mersed leaves filiform or linear, those of the emersed ones spatulate: fruit 
decidedly e —Slow-flowing streams, pools, "and ditches, various prov- 
inces, Fla. to La., Colo., Man., and Newf.—Sum 
b. C. peploides Nutt. Terrestrial, the plant matted: leaf-blades uniform, 
obovate, oblanceolate, or elliptic: fruit ag or nearly so.—Moist soil, various 
provinces, Fla. to Tex. and Ark.—Spr.— 
6. C. autumnalis L. Aquatic with stems 6-17 em. long: leaf-blades narrowly 
ed 5-12 mm. long: fruit orbicular-reniform, scarcely 2 mm. wide, 2 -lobed, 
sessile.—Ponds, lakes, and streams, various provinces, La. to Colo., Ore., Man., 
and Que.—(E£u.)—Sum.—fa ul. 
ORDER SAPINDALES — SAPINDAL ORDER 
Shrubs or trees. Leaves various: blades simple and entire or toothed, 
or compound. Calyx of distinct sepals. Corolla of distinct petals, regular 
or rarely irregular, or wanting. Androecium of as many stamens as there 
are petals, or of twice as many, or rarely of more or fewer. Filaments 
distinct. Gynoecium of a single carpel, or of several united earpels. 
vary superior. Ovules 1 or 2, or several, in each cavity of the ovary, 
pendulous, with the raphe away from the axis of the ovary, or erect or 
ascending. Fruit various—Exceptions to the woody plants are Pachy- 
sandra and Cardiospermum. | 
