Floristik u. Systematik der Phaneroi^amen. — Palaeontologie. 535 



var. m/«or Bivoni oder aber, wenn die massgebenden Autoren lieber den 

 althergebrachten Namen P. tenidssimiis beibehalten wollen, die Be- 

 zeichnung Pot. Panormitanus var. tennissimus Reichenbach erhalten und. 

 von P. pusilliis L. v. tennissimus Koch getrennt gehalten werden. 



Die Besprechung der noch fehlenden zwei Arten P. pusillus und 

 P. triclwiües, sowie der Bastarde P. Panormitanns X trichoides und 

 P. pusillus X niucronatus wird demnächst folgen. 



Leeke (Halle a. S.). 



Benson, M., Telangium Scotti, a new species of Telangiiim 

 (Calymmaiotheca) , showing structure. (Annais of Bot. 

 Vol. XVIIl. p. 161 — 177. pl. XI., and a text-figure. 1904.) 



A number of casts, and, more recently, petrifactions from 

 the Lower Goal Measures of England have been obtained 

 showing synangia, which are sometimes associated with, some- 

 times attached to, leaves of the Sphenopterls type. For these 

 the new genus Telangium is proposed, and it is pointed out 

 that the name Calymmatotheca is no longer available for such 

 specimens, since the fossils previously described as sporangia 

 under this name have proved to be, as Stur originally sugges- 

 ted, of the nature of indusia. A new species Telangium Scotti 

 is instituted for the new synangia preserved as petrifactions. 



The lengh of the sporange is probably more than 3,2 mm, 

 and its width 3 mm., before dehiscence. The synangium has 

 eight sporangial Chambers arranged in two rows. The details 

 of the structure of the sporangia are fully described, and figu- 

 red. Some of the sporangia contain spores. which agree very 

 closely with the pollen-grains in the pollen-chamber of Lage- 

 nostoma ovoides. 



It is pointed out that T. Scotti very closely resembles the 

 British impressions known under fhe name of Calymmatotheca 

 affine, C. bifida, and C. asterioides, which are here referred 

 to this new genus Telangium, as being of the nature of spo- 

 rangia. The best examples have been re-examined, and are 

 here re-described in detail. It is found that T. Scotti is inter- 

 mediate between T. affine and T. liifidum in respect of size^ 

 and shows many features in common with both species. 



The Author then passes on to discuss the evidence for the 

 attribution of Telangium Scotti to Lyginodendron, and its Inter- 

 pretation as the male fructification of that plant. Firstly, there 

 is the association. and general character of the impressions or 

 casts. In two British species, T. affine and T. bifidum, these 

 synangia have been found attached to fronds of the Spheno- 

 pterls type. Next, there is the association of T. Scotti with 

 Lyginodendron in the coal-nodules of Lancashire. Also the 

 character of the tissue of the lower part of the synangium has 

 much in common with the familiär sterile pinnae of Lyginoden- 

 dron, especially the vascular Strand of the pedicel, which re- 

 sembles that of the petiole of that genus. There is , further, 

 a correspondence between the spores of T. Scotti and the 

 pollen-grains germinating in the pollen-chamber of Lagenostoma 



