380 Prof. G. Gulliver on Raphides and other Crystals in Plants, 



Sp. 8. Apis sinensis. 



Length 5 lines. 



This species is of the same colour and general form, as the 

 male of A, mellifica-, but the neuration of the anterior wings is 

 different; the recurrent nervure enters the third submarginal 

 cell nearer to its apex ; the difference in the form of the poste- 

 rior tibise is also a distinctive specific character. (See PI. XIX, 

 fig. 4.) 



EXPLANATION OF PLATE XIX. 



Fig. 1. Posterior leg of the male of Apis mellifica. 



Fig. 2. „ „ Apis dorsata. 



Fig. 3, „ „ Apis jiorea. 



Fig. 4. „ „ Apis sinensis. 



Fig. 5. Posterior leg of the Worker Bee of Apis mellifica. 



Fig. 6. J, „ „ Apis Adansonii, 



Fig. 7- }, }) ii Apis zonata. 



Fig. 8. „ ,y fj Apis dorsata. 



Fig. 9. „ J, „ Apis nigro-cincta. 



Fig. 10. „ J, „ Apis indica. 



Fig. 11. Posterior metatarsus, showing the number of transverse rows of 



bristles to be fourteen in Apis dorsata. 

 Fig. 12. Showing the number to be nine in Apis Adansonii. 

 Fig. 13. „ „ eleven in Apis nigro-cincta. 



Fig. 14. „ „ ten in Apis indica. 



Fig. 15. „ „ ten in Apis mellifica. 



Fig. 16. J, „ ten in Apis florea. 



XXX, Vin. — On Raphides and other Crystals in Plants. 

 By George Gulliver, F.R.S. 



[Continued from p. 212.] 



Bromeliacece, — Besides the species of this order noticed in the 

 'Annals' for May last I have examined leaves of Dasylirion fili- 

 forme and D. acrostichum, in which are a few raphides (more 

 abundant in the pale bases of the leaves), crystal prisms, and 

 sphseraphides ; and a leaf of Bonaparfea gracilis, which affords a 

 profusion of raphides and a few larger crystal prisms. 



Commelinacece. — To the former observations (' Annals,' June 

 1864) it maybe added that Tradescantia discolor is also a raphis- 

 bearing plant : a number of small quadratic crystals, or such 

 octahedrons as were described in Tradescantia by Schleiden, I 

 have likewise seen in the leaves and stem of Tradescantia and 

 Commelina. 



Aracea. — Of the different tribes of this order in Prof. Balfour's 

 'Manual of Botany,' I have examined several species during last 

 summer, and repeated and confirmed the observations given in 

 the 'Annals' for May 1861, Sept. (page 338) and Nov. 1863, 



