part 4] BOWENENSE, GEN. ET SP. NOY. 295 



(5) F.W.Oliver. 1903. 'The Ovules of the Older Gymnosperms ' Ann. 



Bot. vol. xvii, pp. 451-76 & pi. xxiv. 



(6) B. Sahni. 1920. ' On certain Archaic Features in the Seed of Taxus 



haccata, with Remarks on the Antiquity of the Taxinese ' Ann. Bot. 

 vol. xxxiv, pp. 117-33. 



(7) A. C. Seward. 1917. ' Fossil Plants ' vol. iii. 



(8) D. White. 1908. ' Fossil Flora of the Coal Measures of Brazil ' in 



Final Report of Dr. I. C. White, Chief of the Brazilian Coal Com- 

 mission, from July 1st, 1904, to May 31st, 1906, Part iii. Eio de 

 Janeiro, 1908. 



(9) R. Zeiller. 1902. ' Observations sur quelques Plantes Fossiles des 



Lower Gondwanas ' Mem. Geol. Surv. India (Pal. Indica), n. s. vol. ii, 

 Mem. No. 1. 



EXPLANATION OF PLATE XXI. 



Fig. 1. Photograph of specimen showing NumniiUospevmum hoivenense, sp. 

 nov. and Glossopteris ampla from Three-Mile Creek, Bowen. (Half 

 of the natural size.) Specimen F 1900. 



2. Nummulospermtom boicenense, sp. nov. ( X 2.) At the base can be 



seen a vertical ridge giving off a curved ridge to the left in the 

 sarcotesta. (These ridges show as light- coloured lines.) The dark 

 central mass is sclerotesta phis nucellus. Traces of the micropyle 

 can also be seen near the top. (See p. 292.) 



3. Nummulospermum hoifenense, s'p.noY. (X 2.) Showing apex of seed 



with depression ; also trace of micropyle from apex to nucellar 

 beak. (See p. 291.) 



4. Nummulospenmim boicenense, s^p. hoy. (X 2.) Showing sclerotesta 



(sc) and pollen-chamber (pc), also traces of the vertical ridges on 

 the nucellus which may represent vascular strands enveloping the 

 nucellus. (See p. 291.) 



5. Scale-leaf of Glossopteris, Dinner Creek, Stanwell. Specimen F 1888, 



(Natural size.) See p. 293. 



6. Scale-leaf of Glossopteris Brotvniana, Dawson R. Specimen F 1895. 



(Natural size.) See p. 293. 



DiSCTJSSIOlS' ox THE TWO EOEEGOING PaPEES. 



Mr. W. ISr. Edwards remarked on the desirabilit}" of finding in 

 the Glossopteris flora either petrified specimens showing internal 

 structure, or those possessing a cuticle which could he studied after 

 chemical treatment, since conclusions based mainly on association 

 must at present remain tentative. 



Dr. A. M. Daties enquired as to the apparent resemblances 

 between Nummulospermum and OttoJcaria^ and their relative 

 size. 



Dr. F. A. Bathee emphasized the need for the collection of 

 fossils being made by specialists themselves. The museum and 

 laboratory workers should be encouraged to go into the fileld. 



The President (Mr. R. D. Oldham) said that the papers had 

 been of personal interest to him, as he had long been concerned with 

 the Glossopteris flora and problems arising out of it, and had 

 followed with interest the successive additions to our knowledge 

 of the plant which for long was only known as impressions of 



