THE MILKWORT TRIBE. 33 



upper lip of which {fig. 7. c.) is purple, large, and 

 hooded, the lower ( fig. 7- h.) small, flat, yellow, and 

 bent downwards. All the parts of the flower are so 

 placed about the stigma, pressing upon it, that there 

 is no room for insects, or even wind, to insinuate them- 

 selves for the purpose of dispersing the pollen ; on that 

 account the stigma fronts the hood under which the 

 anthers are hidden, and, opening its wide mouth, (for 

 surely that may be called wide, the two lips of which 

 are so far apart as in this plant (c. Sf b. in fig. 7-)») 

 gapes to receive the pollen, which easily falls into it 

 when the anthers open. The fruit is a heart-shaped 

 capsule (fig. 9.)> opening through the middle of the 

 cells, and allowing two pendulous seeds to fall out. 

 The latter (fig. 10.) are small, oblong, dark bro^\ii, 

 hairy bodies, at the hilum of which there is a curious 

 white hairy lobe, or caruncida (fig. 10. 11. a.). They 

 contain a large, flat, dicotyledonous embryo, lying in a 

 small quantity of albumen (fig. 11.). 



The Milkwort Tribe obviously dificrs in so many 

 respects from the Pittosporum Tribe that it would be 

 tedious and unnecessary to recount them. Neither 

 is there any other assemblage of plants suflficiently 

 similar to be mistaken for them, unless it is the 

 Pea Tribe (Letter VIII.), and wiith that students 

 do sometimes confound them, because of the resem- 

 blance that the flowers of the Milkwort appear to bear 

 to what are called papilionaceous. If, however, thev 

 are attentively considered they will be found not to 

 resemble them in reality, for the two wings, which 

 might be mistaken for the wings of a papilionaceous 



VOL. II. D 



