238 CUCURBITAC 2. CIRCA. 
valved, with a single erect seed in each cell, hispid with hooke.] 
hairs. 
C. Pacifica Asch. & Mag. Mostly glabrous, stems usually simple, 
6-12 inches high, from a small tuber; leaves ovate, rounded or cordate at 
base, acute or acuminate, repandly-denticulate, 1-3 inches long; the slen- 
der petiole about as long; racemes without bracts; flowers half a line long; 
calyx. white with a very short tube; fruit a line long, rather loosely covered 
with soft hairs curved aboye, 1-celled, 1-seeded. 1n damp woods, Brit. 
Columbia to California. 
C. alpina L. Sp.9. Glabrous, stems weak, 3-8 inches high, often 
branching above: leaves cordate, shining, rather coarsely toothed, 1-6 
inches long, on slender petioles nearly as long as the blade: pedicels sub- 
tended by minute setaceots bracts: flowers reddish, especially before 
opening: fruit pubescent but scarcely hispid. In damp woods, Alaska to 
Washington and the Northeastern States and Canada. 
OrpeR XXXIX. CUCURBITACE B. Juss. Hort.Trian.(1759.) 
Tendril-bearing herbs with alternate palmately veined leaves 
and axillary moneecious or dicecious, rarely perfect flowers. 
Calyx 5-6-toothed, the limb sometimes obsolete. Petals 5-6, 
distinct or more or less united with each other and coherent 
with the calyx. Stamens 5, sometimes distinct, commonly 
_ united in three parcels (two, and two and one separate) so as 
to appear like three stamens only, rarely 3 and diadelphous, fila- 
ments. of each set sometimes connate; anthers usually long and 
sinuous, or variously contorted or folded, 2-celled, adnate, ex- 
trorse, commonly more or less connate. Ovary coherent with the 
tube of the calyx, usually of 3, rarely of 2 or 4, united carpels, 
sometimes beoelied by the obliteration of the partitions, more 
often with each carpel spuriously 2-celled. Fruit fleshy or 
juicy, rarely membranous. Seeds anatropous, compressed, 
often enveloped by a juicy or dry and membranous arillus; 
the testa coriaceous, albumen none. 
MARAH Kell. Proc. Cal. Acad. i, 38. 
MEGARRHIZA (Torr.) Watson. 
Flowers moneecious: the sterile in racemes or panicles; the 
fertile solitary, from the same axils. Calyx-tube broadly cam- 
panulate: teeth obsolete or very'small. Corolla rotate, deeply 
5-7-lobed, with oblong papillose segments. Sterile flowers with 
the stamens at the base: filaments short and connate: anthers 
free or somewhat adherent; the cells somewhat horizontal, flex- 
uous. Pistillate flowers pedicelled: with or without abortive 
stamens: ovary oblong to globose, usually more or less echinate, 
2-celled or more: cells 1-several-ovuled: ovules ascending, hovri- 
zontal, or pendulous, the attachment mostly parietal: style 
short: stigma 2-3 lobed or parted. Fruit mostly echinate, more 
or less fibrous within, becoming dry, at length bursting regu- 
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