_Herbs or woody plants, climbing by tendrils, with perfect flowers, 5 monadelphous stamens, and a stalked 1-celled ovary free from the calyx, with 3 or 4 parietal placentæ, and as many club-shaped styles._ 1. PASSIFLÒRA, L. PASSION-FLOWER. Calyx of 5 sepals united at the base into a short cup, imbricated in the bud, usually colored like the petals, at least within; the throat crowned with a double or triple fringe. Petals 5, on the throat of the calyx. Stamens 5; filaments united in a tube which sheathes the long stalk of the ovary, separate above; anthers large, fixed by the middle. Berry (often edible) many-seeded; the anatropous albuminous seeds invested by a pulpy covering. Seed-coat brittle, grooved.--Leaves alternate, generally palmately lobed, with stipules. Peduncles axillary, jointed. Ours are perennial herbs. (An adaptation of _flos passionis_, a translation of _fior della passione_, the popular Italian name early applied to the flower from a fancied resemblance of its parts to the implements of the crucifixion.) 1. P. lùtea, L. Smooth, slender; _leaves obtusely 3-lobed at the summit, the lobes entire_; petioles glandless; flowers greenish-yellow (1´ broad); fruit ½´ in diameter.--Damp thickets, S. Penn. to Fla., west to Ill., Mo., and La. 2. P. incarnàta, L. Pubescent; _leaves 3--5-cleft, the lobes serrate_, the base bearing 2 glands; flower large (2´ broad), nearly white, with a triple purple and flesh-colored crown; involucre 3-leaved; fruit as large as a hen's egg.--Dry soil, Va. to Fla., west to Mo. and Ark. Fruit called _maypops_. ORDER 45. CUCURBITÀCEÆ. (GOURD FAMILY.) _Mostly succulent herbs with tendrils, diœcious or monœcious (often gamopetalous) flowers, the calyx-tube cohering with the 1--3-celled ovary, and the 5 or usually 2½ stamens_ (i.e., 1 with a 1-celled and 2 with 2-celled anthers) _commonly united by their often tortuous anthers, and sometimes also by the filaments. Fruit_ (pepo) _fleshy, or sometimes membranaceous_.--Limb of the calyx and corolla usually more or less combined. Stigmas 2 or 3. Seeds large, usually flat, anatropous, with no albumen. Cotyledons leaf-like. Leaves alternate, palmately lobed or veined.--Mostly a tropical or subtropical order; represented in cultivation by the GOURD (LAGENÀRIA VULGÀRIS), PUMPKIN and SQUASH (species of CUCURBITA), MUSKMELON (CÙCUMIS MÈLO), CUCUMBER (C. SATÌVUS), and WATERMELON (CITRÚLLUS VULGÀRIS). [*] Fruit prickly. Seeds few, erect or pendulous. Flowers white. Annual. [+] Ovary 1-celled. Seed solitary, pendulous. 1. Sicyos. Corolla of the sterile flowers flat and spreading, 5-lobed. Fruit indehiscent. [+][+] Ovary 2--3-celled. Seeds few, erect or ascending. 2. Echinocystis. Corolla of the sterile flowers flat and spreading, 6-parted. Anthers 3. Fruit bladdery, 2-celled, 4-seeded, bursting at the top. 3. Cyclanthera. Corolla 5-parted. Anther 1, annular. Fruit oblique and gibbous.