DIV. II 



ANGIOSPERMAE 



661 



hollow floral receptacle so that only the styles are free. The fruit resembles a 

 berry, the floral receptacle becoming succulent. The boundaries of the separate 

 loculi are formed of parchment-like or stony tissue. Pyrus mains, Apple (Fig. 

 521, 3 ; Fig. 694), and P. communis, the Pear, are important and long-cultivated 

 fruit trees, of which numerous varieties are grown. Cydonia vulgaris, the Quince, 

 has large, solitary, rose-coloured flowers. The fruits are in shape like an apple 

 or pear, covered with fine woolly hairs and with a pleasant scent, though not 

 edible when uncooked. In Mespilus germanica, the Medlar, the fruit has an 

 apical depression surrounded by the remains of the calyx. The evergreen 

 Eriobotrya japonica, is commonly planted in the Mediterranean region; Sorbiis 



FIG. 693. Quillaja Saponaria. ( nat. size. 

 After A. MEYER and SCHUMANN-.) 



FIG. 694. Pyrus malus. Flowering shoob 

 single flower, and fruit in longitudinal 

 section. ( nat. size.) 



(Pyrus} aucuparia, the Rowan. Crataegus (Mespilus} oxycantha, the Hawthorn, 

 in hedges or planted as an ornamental tree (cf. p. 318). 



A concave, pitcher -shaped floral axis with one to many free carpels, each of 

 which encloses 1-2 ovules, characterises the genus Rosa. The partial fruits are 

 nut-like, and are enclosed by the hollowed floral axis (Figs. 569, 692 (7). The 

 leafy development of the numerous stamens has given rise to the cultivated 

 double forms. Agrimonia and Hagenia abyssinica have a dry cup-shaped receptacle. 

 Hayenia is a dioecious tree with unequally pinnate leaves, the adherent stipules of 

 which render the petiole winged and channelled. Inflorescence a copiously 

 branched panicle. Each flower has two bracteoles and an epicalyx. The flowers 

 are unisexual by suppression of the male and female organs- respectively. The 

 corolla later falls off and the sepals become inrolled, while the epicalyx enlarges. 

 The two free carpels have each a single ovule. Fruit one-seeded (Figs. 695, 696). 

 AlchemiUa has no petals (Fig. 521, 2). Sanguisorba officinalis has polygamous 



