52 



Petals C-7, linear oblong. Capsule many seeded. 



Shrubs. HoMALiuM. 



Petals 5, ovate-rotundate. Fruit dry, 1-seeded. Tree. Gerrardina. 



List of Species. 



1 Homalium, J<icq. 



rufesceus. Bth. 



sp. {BluckwelUa dentata). 



B. 



2 Gerrardina, Oliv. 

 foliosa, Oliv. 



ORDER LXXIV. PASSIFI.OREiE. 



A small Order of tropical and subtropical plants, the largest 

 number of which are found in America. The Passifloras are well 

 known both as ornamental plants and also on account of their eatable 

 fruits, connnonly known as " Granadillas," of which there are several 

 species and varieties ; but it may not be so well known that the roots 

 of some at least of the species are considered to be poisonous. Car lea 

 papaya is the common " Papaw," too well known in Natal to require 

 further notice here. From its sap " Papaine " is obtained by evapora- 

 tion, and is used medicinally. One of the American species of Carica 

 is said to be very poisonous. 



Number of species about 250. 



(Ex. Passion Flower ; Granadill^v.) 



Flowers bisexual. Calyx 3-parted. Corona double. Tryphostemma. 

 Flowers dioecious. Calyx 5 fid. Disk 5 glandular. 



Corono 0. Modecca. 



Flowers dioecious. Calyx 5 parted. Disk without 



glands. Corona 0. Ophioc^aulon. 



Flowers monoecious. Calyx o-f) parted. Corolla 



monopetalous, 3-5 lobed. Capsule pod-like. Ceratosicyos. 



. LitiT OK Species. 



1 Tryphostemma, Uarv 

 Sandersoni, Harv. 



2 Ophiocaulon, Uook. 

 gummifera, Hk. f. 



3 Ceratosicyos, Nees. 



AB. Eckloni, Nees. BCZ. 



4 Modecca, Lam. 



AB. digitata, Harv. EZ. 



ORDER LXXV. CUCURBITACEiE. 



An easily recognised Order, wliich is rare in temperate climates 

 and quite absent from cold ones. It includes many plants which are 

 used both medicinally and as food. Bryonia alba and dioica are both 

 poisonous, but are used medicinally. Citndlus colocynthus gives the 



