jlj NATVUAl. IHSTOJIY OF PLANTS. 



While we may define Boca//fa as i>nof/a with the stamens of 

 Milium, Pojjowia} (figs. 251-*2()0), closely analogous by the small 

 size of its flowers and by its corolla and gynajceum, has most 

 peculiar stamens, very dissimilar in the fairly numerous species now 

 included in the genus, and which, presenting in some species forms 

 like those ascribed to the Ucarircp and the Milimea, offer, on the 

 contrary, in others, very strange forms, which would necessitate 

 the loundation of a special tribo, if it were always right to set a 



Popowia {Clnlhrospermiim) Mnnnli. 

 Fig. 252. 



Popowia fomical a. 



Fig. 253. 



Stamen (\»). 



capital value on the appearance of the pieces of the androceum. But 

 this will only be seen after a somewhat detailed study of certain 

 African species of Popoiria. 



P. caffra; for instance, has a small tluwer, of which the bud 

 is depressed, with a short calyx of three divisions, and six 

 valvate petals, nearly as broad as they are long. The outer ones 

 are sessile, nearly triangular. The inner taper considerably at 

 the base, where they leave large openings between one another, 

 through which the stamens are seen. These are rather numerous. 

 Tiie inner ones are the longer, and touch by their very thick 

 edges, to form a continuous circular belt round the gymcccum. 

 The outer ones are the shorter, but all present the same conforma- 

 tion, oasifr to rcpn'scnf (fig. :25l) than to describe. Imagine an 



' Knul., (}tn., 11. J71n. - M. 1|.. <;,,,.. 2.'). n. xpeciei n. 2 of thU autlior is n (•Ifis(ochlamyt). 



\9. — U. Us., AdaMo,ii„,v\u.-A]i.XiU. 1I(.,,K. —GuaKeria caff'ra SojiU., Fl. Cap., i. U.— 



& Tn.)MW., /'/. /«</.. i. 114. ir„„„a cnffrn K. Mkv., PI. Dreg. 



• liENIII., /,<-iH. Tionii.,\\\\\. tTn, 1, 1 (1),. 



