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Fl China 19 48 50 2011 26 CUCUMIS Linnaeus Sp Pl 2 1011 1753 huang gua shu Lu Anmin Lu An ming Charles Jeffrey Herbs scandent or creeping annual Stem and branches scabrous hispid Tendrils slender simple Leaf blade almost orbicular reniform or cordate ovate undivided or palmately 3 7 lobed Plants monoecious rarely dioecious or flowers hermaphroditic Male flowers fascicled or solitary calyx tube campanulate 5 lobed segments subulate corolla rotate or subcampanulate 5 lobed segments oblong or ovate stamens 3 free inserted on corolla tube anthers oblong one 1 celled two 2 celled anther cells linear reflexed or curved connective produced rudimentary ovary glandular Female flowers solitary or fascicled calyx and corolla as in male flowers staminodes 3 subulate ovary cylindric ovules numerous horizontal style short stigmas 3 5 Fruit polymorphic fleshy indehiscent smooth or verrucose Seeds numerous compressed emarginate About 32 species tropical and temperate regions most species in Africa four species in China 1a Fruit smooth ovary hairy 1 C melo 1b Fruit and ovary muriculate or verrucose or sparsely tuberculate not hairy 2a Fruit oblong or cylindric 5 10 50 cm 2 C sativus 2b Fruit oblong smaller than 5 cm 3a Fruit oblong at least twice as long as broad muricate 3 C hystrix 3b Fruit obovoid only slightly longer than broad sparsely obscurely tuberculate 4 C debilis 1 Cucumis melo Linnaeus Sp Pl 2 1011 1753 hairs fruit in cultivated forms fragrant and sweet tian gua Farmlands roadsides Anhui Jiangsu Shandong Xinjiang also cultivated throughout China native to Old World tropics and subtropics introduced in New World tropics widely cultivated in tropical and temperate countries Plants creeping Stems and branches scabrous puberulent or hispid Tendrils filiform puberulent Petiole 7 12 cm setose leaf blade suborbicular or reniform 6 15 6 15 cm papery abaxially hispid adaxially scabrous undivided or 3 7 lobed dentate sinus truncate or rounded Plants monoecious or flowers bisexual Male flowers 1 or 2 to several fasciculate pedicels filiform 0 5 4 cm pubescent calyx tube narrowly campanulate 3 8 mm densely hispidulous to white villous segments subulate or linear 2 4 0 4 1 2 mm corolla yellow tube 1 2 mm segments ovate oblong to broadly ovate or obovate 3 24 2 5 20 mm obtuse anther cells flexuous Female flowers solitary ovary ellipsoid or fusiform 4 11 2 5 mm densely white lanate villous or puberulent style 1 2 mm stigmas 3 2 2 5 mm Fruit very variable in size shape color odor and taste Seeds numerous yellow white ovate oblong 4 8 2 4 4 mm smooth base rounded apex acute emarginate Fl and fr May Sep Farmlands roadsides Anhui Jiangsu Shandong Xinjiang C and E China also cultivated throughout China native to Old World tropics and subtropics introduced in New World tropics widely cultivated in tropical and temperate countries 1a Ovary densely villous or white lanate with spreading hairs cultivated fruit sweet 1a subsp melo 1b Ovary very shortly and densely puberulent hairs appressed cultivated fruit not sweet 1b subsp agrestis 1a Cucumis melo subsp melo tian gua yuan ya zhong Cucumis bisexualis A M Lu G C Wang Ovary and young fruit pilose or lanate with spreading The fruit is used as a refreshing dessert in summer the plants are used medicinally 1b Cucumis melo subsp agrestis Naudin Pangalo in Zhukovskii Zemledel ch Turtsiya 534 1933 cai gua Cucumis melo var agrestis Naudin Ann Sci Nat Bot s r 4 11 73 1859 Bryonia callosa Rottler C acidus Jacquin C callosus Rottler Cogniaux Harms Ovary and young fruit sericeous with short appressed hairs fruit in cultivated forms mostly not fragrant and not sweet Farmlands roadsides C and E China commonly cultivated in China throughout Old World tropics introduced in New World tropics also commonly cultivated in E and SE Asia rarely cultivated elsewhere The fruit is used as a vegetable cai gua The forms cultivated in China belong to the Conomon cultivar group Cucumis conomon Thunberg Nova Acta Regiae Soc Sci Upsal 3 208 1780 C melo var conomon Thunberg Makino Bot Mag Tokyo 16 16 1902 2 Cucumis sativus Linnaeus Sp Pl 2 1012 1753 huang gua Plants scandent or creeping Stem and branches angular white hispid Tendrils slender simple Petiole 10 16 20 cm leaf blade broadly ovate cordate 7 20 7 20 cm membranous margin 3 5 angular or lobed lobes triangular dentate apex acute or acuminate sinus half orbicular Plants monoe Fl China 19 48 50 2011 cious Male flowers fasciculate pedicel filiform 5 15 mm puberulent calyx tube narrowly campanulate 8 10 mm densely white pubescent segments subulate corolla yellow white ca 2 cm segments oblong lanceolate acute anthers 3 4 mm connective ca 1 mm Female flowers solitary or fascicled pedicels pubescent 1 2 cm ovary fusiform muricate Fruit yellowgreen oblong or cylindric 5 10 30 50 cm muricate usually verrucose Seeds white small narrowly ovate 5 10 mm emarginate both ends acute Fl and fr summer Forests thickets mountain slopes 700 2000 m Guangxi Guizhou Yunnan also commonly cultivated in China NE India Myanmar Nepal Thailand cultivated in all tropical and temperate countries gin dentate apex acute Plants monoecious Male flowers solitary or subfasciculate calyx tube narrowly campanulate ca 6 mm segments linear 1 2 mm corolla yellow segments ovateoblong 5 6 3 4 mm filaments ca 1 mm anthers ca 2 mm Female flowers solitary pedicels ca 5 mm calyx and corolla as in male flowers corolla 8 10 mm ovary oblong ovoid ca 10 4 mm densely yellow brown hispid style 2 3 mm stigmas 3 lobed Fruit oblong 4 5 1 5 2 3 cm muricate verrucose Seeds narrowly ovate 3 4 mm both surfaces smooth emarginate Fl Jun Aug fr Aug Sep Forests thickets 800 1500 m W Yunnan NE India Myanmar Thailand 1a Fruit oblong or cylindric 10 30 50 cm muricate usually verrucose 2a var sativus 4 Cucumis debilis W J de Wilde Duyfjes Adansonia s r 3 29 241 2007 1b Fruit oblong or subglobose 5 6 cm smooth 2b var hardwickii dian huang gua 2a Cucumis sativus var sativus huang gua yuan bian zhong Fruit oblong or cylindric 10 30 50 cm muricate usually verrucose Commonly cultivated in China cultivated in all tropical and temperate countries 2b Cucumis sativus var hardwickii Royle Gabaev Ogurtsy 47 1932 xi nan ye huang gua Cucumis hardwickii Royle Ill Bot Himal Mts 1 220 1835 C sativus f hardwickii Royle W J de Wilde Duyfjes C sativus unranked hardwickii Royle Alefeld Fruit oblong or subglobose 5 6 cm smooth Forests thickets mountain slopes 700 2000 m Guangxi Guizhou Yunnan NE India Myanmar Nepal


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