as a form of T. . This is one of tl, n which 



expediency must go into the balance, and where it k: 

 the beam. For horticultural purposes the two will be 

 always distinguished, and the palm given to 

 Landolphiaflorida, figured only two months ago, is another 

 conspicuous instance of a very widely distributed and 

 variable tropical African plant. Except, perhaps, N 

 Zealand, I know of no considerable botanico-geogrnphical 

 area in which the species seem to be as imperfectly differen- 

 tiated as m tropical Africa. With regard to the generic 

 name of Meyenia, it is fortunately untenable botanicallv, 

 lor it was a mistake to refer f. erecta to it. As T. 

 Anderson has pointed out, in his paper on African 

 Acanthacem in the Journal of the»Linna)an Society (vol. 

 vn p 18), it is the Meyenias that have a truncate calyx, 

 and the true Thunbergias a many-toothed one. 



T. affinis and erecta have occasionally % -dl stipular 



thorns on the branches at the base of the petioles, and 

 both have occasional pulvffli of hairs in the I 

 which is the character of Mr. 8. Moore's var. 



lne area oyer which 7. ;< mnc]l 



wider than that of T. erecta. It was first described by 

 JUr. Moore from Mombassa specimens collected by Hi 

 brandt, and Angola ones of Monteiro. In the latl 

 country it was collected by Welwitsch, in the Shire Hi 

 lands by Buchanan, and on the Zanzibar coast by Sir John 

 Kirk to whom the Royal Gardens are indebted for the 

 plants irom which the figure here given was taken. It had, 

 however previously been received from the Imperial 

 .Botanical Gardens of Berlin. 



T. affirm is a handsome rambling shrub, attaining, if 

 trained, twelve feet in height, with slender flexuous 

 orancnes. In a pot it remains dwarf and compact. It 

 flowered m the Palm House in September, 1886.-/. D. II. 



6 vSicll s Sono n f^° Vary; 2 an ,f 3 ' anthers 5 4 ' sti S ma J 5 » OW7 and disk ; 

 o, vertical section ol the same -.—all enlarged. 



