456 FLOWERS OF GARDEN AND GREENHOUSE 



Flowers tubular, in axillary racemes, lower half scarlet, upper half 

 yellow; October to February. Native of Brazil. Plate 217. 



J. GHiESBREGHTiANA (Ghiesbreght's). Stem 1 to 1^ foot high. 

 Leaves oval-lance-shaped, smooth. Flowers scarlet, in terminal panicle's ; 

 winter. Native of Mexico. 



J. PENRHOSiENSis (Penrhose's). Similar to J. florihunda, but with 

 more acute leaves and rich crimson flowers, brighter and more showy. 

 Hybrid. 



J. MAGNIFICA (magnificent). Whole plant pubescent. Stems erect, 

 angular. Leaves stalked, elliptic, acuminate, 6 to 9 inches long, dull 

 trreen. Flowers 2 inches long, rosy mauve, in dense terminal erect heads 

 3 to 6 inches long. Var. Pohlicma has flowers of a darker colour and 

 purple-tinted leaves. Both plants are known in gardens as Cyrtantheras. 



Jacohinias are either stove or warm greenhouse plants, 

 which, however, maj^ be grown in frames during the summer ; 

 in the autumn they must be given all the sunshine possible to ripen them 

 before transferring to the warm greenhouse. When actually flowering 

 they do not require a high temperature. They require plenty of water, 

 and during the growing period they should frequently be syringed. 

 Insufficient watering causes a loss of leaves. The most suitable compost 

 is a mixture of equal parts loam and leaf-mould. To secure a compact 

 bushy growth the main shoots should be nipped, especially for pot- 

 culture. They are propagated by cuttings made from shoots of the old 

 plants, inserted in a close frame in spring or summer. They are useful 

 as winter- and spring-flowering plants. 

 Description of Justicia {or Lihonia) florihunda, natural size. Fig. 1, 



Plate 217. Jill enlargement of the flower ; 2, a section of the same. 



THUNBERGIAS 



Natural Order AcAXTHACEiE. Genus Thunbergia 



Thunbergia (named in honour of Professor Thunberg, of Upsala, 1743- 

 1822). A genus of about thirty species of annual or perennial stove 

 herbs, some of which are of twining habit. They have opposite leaves, 

 and conspicuous tubular flowers with five rounded spreading lobes ; four 

 stamens of unequal length: capsules thick and leathery with a shai-p 

 flattened beak. They are natives of South and Tropical Africa, 

 Madagascar, and the warmer parts of Asia. 



