Text-book of structural and physiological botany . Gum arable is obtained fromAcacia Seyal^ tortilis, and Ehrenbergiana, all natives of tropical Africa ;* terra japonica, or catechu, is the sap of Acacia Catechu of Bengaland Coromandel. Order 2. RosACEi^. The leaves are stipulate ; the calyx regular andusually gamosepalous and 5-partite, the odd section superior; the co-rolla regular ; the petals distinct, attached to the margin of the calyx,and equal in number with its teeth ; the stamens perigynous, usually manytimes the number of the petals, and bent inwards in vernation ; the ovarysome

---

Text-book of structural and physiological botany . Gum arable is obtained fromAcacia Seyal^ tortilis, and Ehrenbergiana, all natives of tropical Africa ;* terra japonica, or catechu, is the sap of Acacia Catechu of Bengaland Coromandel. Order 2. RosACEi^. The leaves are stipulate ; the calyx regular andusually gamosepalous and 5-partite, the odd section superior; the co-rolla regular ; the petals distinct, attached to the margin of the calyx,and equal in number with its teeth ; the stamens perigynous, usually manytimes the number of the petals, and bent inwards in vernation ; the ovarysometimes monocarpellary, but more often multicarpellary, the carpelsbeing either free or coherent with one another and with the calyx ; thefruit dry or succulent, a berry, drupe, or a number of achenes or follicles ;the seeds exalbuminous. This large and important order is again dividedintO suborders :— I. Pomece. (Figs. 518, 519). Trees or shrubs with alternate simpleleaves furnished with free deciduous stipules. The flowers are regular and

---

Size: 1312px × 1906px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1800, bookdecade1870, bookpublishernewyorkjwileysons