Cucurbits

Cucurbitaceae
Hodgsonia male plant
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Rosids
Order:	Cucurbitales
Family:	Cucurbitaceae Juss.

The Cucurbitaceae, also called cucurbits and the gourd family, are a plant family consisting of ca 965 species in around 95 genera, the most important of which are:

The plants in this family are grown around the tropics and in temperate areas, where those with edible fruits were among the earliest cultivated plants both in the Old and New Worlds. The Cucurbitaceae family ranks among the highest of plant families for number and percentage of species used as human food.

The Cucurbitaceae consist of 98 proposed genera with 975 species, mainly in regions tropical and subtropical. All species are sensitive to frost. Most of the plants in this family are annual vines, but some are woody lianas, thorny shrubs, or trees (Dendrosicyos). Many species have large, yellow or white flowers. The stems are hairy and pentangular. Tendrils are present at 90° to the leaf petioles at nodes. Leaves are exstipulate alternate simple palmately lobed or palmately compound. The flowers are unisexual, with male and female flowers on different plants (dioecious) or on the same plant (monoecious). The female flowers have inferior ovaries. The fruit is often a kind of modified berry called a pepo.

One of the oldest fossil records so far is Cucurbitaciphyllum lobatum from the Paleocene epoch, found at Shirley Canal, Montana. It was described for the first time in 1924 by Knowlton. The fossil leaf is palmate, trilobed with rounded lobal sinuses and an entire or serrate margin. It has a leaf pattern similar to the members of the genera Kedrotis, Melothria and Zehneria.

...
Wikipedia