20 Graines Pitaya, fruit du dragon, Hylocereus Undatus

White and red pitaya seeds, dragon fruit, hylocereus unndatus |

Selenicereus unndatus , the pitahaya with white flesh, is a kind of cactaceae and is the most cultivated species of the genus. It is used both as an ornamental climbing plant and as a fruit tree - the Pitahaya or Fruit of the Dragon . ^[2] The native origin of the species has never been resolved. ^{[ citation nécessaire ]}

^{20 seeds}

^{photo 2: germination in 4 days in greenhouse 25-30 ° C}
The dragon fruit stems are scandent (climbing habit), creeping, sprawling or climbing, and branching abundantly. There can be four to seven, between 5 and 10 m (16 and 33 ft) or more, with joints from 30 to 120 cm (12 to 47 in) or more, and 10 to 12 cm ( 3.9 to 4.7 in) thick; with generally three ribs; The margins are horny (in the shape of a horn) with age and undulate. ^[2]

The areolas , that is to say the small area bearing thorns or hairs on a cactus, measure 2 mm (0.079 in) in diameter with interwar trees of 1 to 4 cm (0.39 to 1.57 in). The thorns on the adult branches measure from 1 to 4 mm (0.039 to 0.157 in) long, being acicular (needle -shaped) with almost conical, and grayish to black and spread out, with an epidermis dark green.  ^[2]

The scented night flowers measure 25 to 30 cm (9.8 to 11.8 in) long, 15 to 17 cm (5.9 to 6.7 in) wide with the pericarp of 2, 5 to 5 cm (0.98 to 1.97 in) long, approximately 2.5 cm (0.98 in)) thick, oval, acute bract, 2.5 to less than 4 cm (1.6 in ) long; Receptacle of about 3 cm (1.2 '') of thickness, the bractles are linear-lanceoles, from 3 to 8 cm (1.2 to 3.1 in long) long; TEPALES ExternalLancéole-Lineaire with linear, acuminate (rummage in point), measuring 10 to 15 cm (3.9 to 5.9 in) long, 10 to 15 mm (0 , 39 to 0.59 in) wide and mucroné (ending with a short sharp point). Their color is greenish or whitish yellow, rarely tinged with rose; The internal tepals are lanceolate (treading at one point at the end) with oblanceolate (that is to say more sophisticated at the base), up to 10 to 15 cm (3.9 to 5 , 9 in) about 40 mm (1.6 in) wide at the widest point, and mucroné, uninterrupted, pointed to acuminate (pointed) and white. Stamens from 5 to 10 cm (2.0 to 3.9 in) long, are declined, inserted in a continuous zone of the throat at 35 mm (1.4 in) above the pericarp and of cream. The style (bearing the stigma) in 17, they measure 5 to 24.5 cm (2.0 to 9.6 in) long, robust, 6 to 8 mm (0.24 to 0.31 in) Thickness, cream and up to 26 stigma lobes, They can be whole or sometimes split at the top, cream, about 25 mm (0.98 in) long. The nectar rooms measure 30 mm (1.2 in) long.^[2]

The fruit is oblong to oval, from 6 to 12 cm (2.4 to 4.7 in) long, from 4 to 9 cm (1.6 to 3.5 in) of thickness, red with large BRACTEOLS , with white pulp and edible black seeds. ^[2]

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