824 



C. G. Stenzel, 



angulatis irregulariter congestis, absque cellulis prosenchymatosis aut par- 

 enchymatosis. 



Circumdatur axis cortice saepe crassissimo, parenchymatoso, a quo 

 in nonnullis speciebus Strato cellularum prosenchymatosarurn 

 separatur. 



Percurritur cortex in plerisque processibus radicalibu s nume- 

 rosissimis a tota superficie axis ortis, per corticis parenchyma descenden- 

 tibus. quod demum relinquentes in radices adventitias transeunt truncum 

 tegentes. 



Processus radicales vel exordia radicum per corticis parenchyma de- 

 currentes prosenchymatoso cinguntur Strato, extrorsum in parenchyma cor- 

 ticis transeunte, inlrorsum parenchyma vastum includente fasciculumque 

 ligni centralem, qui e vagina propria constat parenchyma tenerrimum ve- 

 lante et fasciculum vasorum centralem, profunde sulcatum, transverse scis- 

 sum stellam referentem 3 — 11 radiatum. 



In radices demum adventitias transeunles extrorsum Strato cor- 

 ticali parenchymatoso cinguntur. 



Psaronius Cotta, Dendrol. p. 27, Taf. 4 — 7. 

 Endogenites psarolithus, E. asterolithus und E. helmin- 

 tholithus: A. Sprengel, comment. de psarolithis, S. 28 f. 

 Staarstein, Augenstein, Wurm- oder Madenstein, Sternstein. — 

 Starry-stone. 



Unger, in En dl. Gen. plant. Suppl. IL, p. 4. — Synopsis plant. 



foss., p. 144. Genera et species plant, foss., p. 216. 

 Cor da, in Slernb. Flora der Vorw. II. (Heft VI.), S. 173. — 



Beitr. z. Flora d. Vorw., S. 94. 

 Presl, suppl. tentaminis pterid., S. 28. 



Brongniart, hist. d. veget. foss. II., S. 57. — Tableau des genres 



des veg. foss., S. 44. 

 Mougeot, essai d'une flore du nouveau gres rouge des Vosges, 



S. 10. — Note sur les veget. foss. du gres rouge, S. 2 — 5. 



