Miscellaneous. 221 



the six stamens : — " Stamina 3 loug'iora et 3 alterna hreviora " 

 (Lois. Flora Gallica). 



Eut there also exists at the Glenans a third form much more 

 rare than the preceding — a form with the androccium triandrous, 

 in consequence of the abortion of the three stamens of the inner 

 row. In certain dolichostylate flowers we notice that the three 

 inner stamens, hidden at the bottom of the tube, are nearly sessile 

 upon the perianth ; in others the anthers become completely aborted 

 and the flower becomes triandrous. 



JS^arcissus rejit'xus, Lois,, therefore presents, at the Glenans, three 

 remarkable forms : — (1) a form with a long style and with shorter 

 stamens (dolichostylate form) ; (2) a form with a short style and 

 with longer stamens (brachystylate form) ; (3) a triandrous form, 

 produced by the abortion of the three inner stamens. This Nar- 

 cissus with a triandrous androecium directly connects the Amaryl- 

 lideaj with thelrideae, which are onlyAmaryllidea^ with three extrorse 

 stamens. But by its triandrous andneciMn and its introrse stamens 

 the Narcissus rejlexas still more directly unites the Amaryllidese 

 with the H«modorace;e through certain genera which, like bilotris, 

 Laclmanthes, and Fhlebocarya, possess three introrse stamens and 

 a perfectly inferior ovary. — Comjites liendus, June 30, 1884, 

 p. 1600. 



Anatomy of Epeira. By M. Vladimir Schimkewitsch. 



M. Schimkewitsch has published, in the ' Annales des Sciences 

 Naturelles,' a most important paper, accompanied by eight plates, 

 upon the anatomy of Ej^>(;ira. The conclusions resulting from his 

 investigations he sums up as follows : — 



1. It is possible to establish the homology which exists between 

 the appendages and the various parts of the body of the Arachnida 

 and those of the other Arthropoda (Myriopoda and Insecta, Crus- 

 tacea and Limulidte). 



2. The Arachnida, placed between the Tracheata and the Limu- 

 lidoe on the one hand, and the Crustacea on the other, are destitute 

 of antennaj. 



3. Their mode of development, as well as the structure of their 

 organs of digestion, respiration, and vision, approximate them to 

 the Myriopoda and the larvae of insects. 



4. On the contrary, by their circulatory apparatus and their 

 muscular system, the higher Arachnida approach the Limulidte ; 

 but this resemblance may be explained by the identity that exists 

 in the general configuration of the body in these two forms ; for 

 the Limulidae, according to their evolution (Nauplius-stage and 

 Trilobite-stage), and according to the constitution of the respiratory 

 apparatus, are true Crustacea destitute of antenna). 



