for the Microscope, 19 



138. PLANTAIN SEED (Plantago psyUiitin}. These 

 shining brown seeds are oblong, with a broad deep furrow 

 on one side, and convex on the other. Though not a 

 native of Britain, the plant is sometimes met Avith. (PI. 

 II., fig. 18.) 



139. TOBACCO SEED (Nicotiana tabaciiiii). The seeds 

 of this popular plant are kidney-shaped, of light brown 

 colour, with strongly marked waved ridges meandering 

 over the surface. Towards the concave portion of the 

 seed these become somewhat less decided. On some 

 specimens a curious iridescence may be noticed in parts. 

 (PI. II., fig. 35-) 



140. SPHCENOGYNE SEED (Sphcenogynespetiosa). These 

 beautiful seeds have the appearance of a complete plant, 

 stem, leaves, and root being all represented. The stem 

 is stout, slightly curved, with longitudinal ridges, termi- 

 nating at one end in silky, glistening filaments, and at the 

 other in four obovate leaves, with broad central veins. 

 The general colour is pure white. (PI. II., fig. 32.) 



141. CHINA NETTLE (Bxhmeria nivea). The plant 

 furnishes the beautiful China grass fibre, and has been 

 grown experimentally in this country. The dull brown 

 seeds are attenuated towards each extremity, and covered 

 with short transparent hairs. (PI. II., fig. 23.) 



142. COMMON SNAPDRAGON (Antirrhinum majus}. The 

 seeds of this widely diffused and favourite flower are of 

 very irregular form, of a dull snuffy-brown colour, with 

 the surface honeycombed with deep hexagonal pits. The 

 partitions of these pits are striate, and their margins 

 irregular. (PI. II., fig. 21.) 



143. CHILI NETTLE SEED (Loasa aurantiacd). This 

 half-hardy annual affords seeds of a delicate yellowish- 

 brown colour, somewhat oval in outline, with very deep 

 and bold reticulations, mostly hexagonal, over the entire 

 surface. The edges of the dividing walls are somewhat 

 darker. Through some of the cells a smaller dividing 

 ridge runs longitudinally. (PI. II., fig. 28.) 



144. SPURGE SEED (Euphorbia grxca). The outline 

 of these seeds is pear-shaped, irregularly divided by a 



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