POLLEN. 7 



very minute. Diph ylleia in the Berberidese is echinate, while 

 the greater part of that family is smooth and globular; 

 others (Epimedium) have three bands; many others in the 

 Malpighiacese are globular, with pores on the equator, or 

 variously disposed. 



Similarly in the large genus Kanunculus. R. arvensis (No. 

 425) alone is echinate ; most of that species have three bands, 

 while many of the Anemone have also three slits or bands ; 

 A. coronaria (No. 424) is dodecahedric, and A. pavonina (No. 

 425) is dodecahedric, and has rough globes, not however echi- 

 nate. Many of the Dipsacacese are also sub-globular, but some 

 have fantastic forms: the Morina is like a spigot (given by 

 Mohl, and observed by myself in Indian specimens). 



Some of the true Campanulacese have pollen covered 

 with small echinations, which disappear in oil; others are 

 smooth, while the Lobeliacese are all small, with three slits. 

 In the sub-order of Epacridese, Styphilese is echinate, while 

 the true Epacris has compound pollen like the Ericaceae. 

 The true Geraniese sub-order is large, rough, or sub-echinate, 

 and the Viviana is similar, but smaller. The Tropseolum 

 has usually three bands, which assume a trigonous form 

 when seen endwise, as figured by Pollenden ; but one species, 

 Tropceolum tricolor, is very different (No. 327), a curved 

 narrow form, not very far from the peculiar crescent shape of 

 Limnanthes (Nos. 329, 330) ; another species of Limnanthes is 

 figured by Hassall, somewhat similar, but echinate. Balsa- 

 minese are somewhat oblong, with three bands or little pores, 

 and the Oxalidese are usually globular or oblong, smooth or 

 rough. 



The Boraginese generally have the pollen in the form of 

 a dumb-bell, but some are of the more common 3-slitted 

 form, or oval. The Polygalese have a peculiar form ; in the 

 natural state oval with narrow bands. When made more 

 visible by olive oil they show a beautiful form like a wicker- 

 work basket, varying slightly in the different species. Some 

 of the other genera are not similar, but of a simple form 

 (Nos. 367, 368, 369, 380). 



The Papaveracese have many forms, some simple, some 

 globular ; some of the Fumariacese are very peculiar, cubical, 

 with large pores (Fumaria officinalis), figured by Hassall. 



The Violacese, as remarked by Mr. Bennett, are penta- 



