80 Alfred J. Eivart : 



in order to penetrate the ground readily. It may even be shorter 

 and l)roader than in the figures given, and may be three or more 

 times longer, and half as broad, thus bringing the fruit near to 

 some of the rather variable shapes assumed by the aerial fruits 

 of Sisymbrium cardamnioides. 



Mr. Header (Vict. Nat., 1905, p. 177), has, however, watched 

 the growth of the plant, and concludes that it is not a form of 

 8. cardaniinoides, but is a good species (and genus) usually form- 

 ing hypogeal fruits, but when luxuriant also producing them 

 above ground. The variation in the shape of the fruit would, 

 however, bring it near to S. cardaininoides. The differences in 

 the flowers might be easily the result of their autogamous habit, 

 as in species of Viola or Lamium. Numerous attempts to germ- 

 inate and grow the plant from seed failed. The seed apparently 

 rapidly loses its vitality, presumably in accordance with the fact 

 that normally it is iunnediately planted. The appended figures 

 show that Geococcus differs in many respects besides its general 

 habit from Sisymbrium^ but until the former plant has been, 

 proved to remain true for several generations, the possibility of 

 a relationship between the two remains. Geococcus was omitted 

 from the census by Mueller, but on the present evidence as to its 

 structure must be restored, at least until cultural experiments 

 succeed in showing that it is a form of another plant. 



GuNNiOPSis INTERMEDIA, Diels. (I)iels and Pritzel, Fragm. 

 Phyt. Aust., etc., p. 197) = Aizoon intermedium, Diels. 

 (Aizoaceae). 



This new species appears to be the same as the " Aizoon glab- 

 rum " recorded by Mr. Luehmaim, but of which no description 

 was published. 



In Engler's Pflanzenfamilien, Pax founds the genus Gunni- 

 opsis for the Australian species of Aizoon upon the following 

 characters : — 



Aizoon, calyx 5 partite, imbricate ; capsule loculicidal. 

 GuNNiOPSis, calyx 4 partite, valvate ; capsule septicidaj. 



In Gunniopsis, G. quadrifaria (F. v. M.), Pax is included, 

 which is presumably a misprint for G. (juadrilida (A. (piadrifidum, 

 F. v. M.). The capsule is, however, both septicidal and partly 



