. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . Fig. 72. M a r c h a n t i a p 0 1 y 111 0 r p h a. Keirapflänzchen. s = ge- sprengte Spore; r = Rhi- zoid: y = Scheitelzelle. Yerg. 210'^,

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Keywords: ., bookcentury1900, bookcollectionbiod, bookdecade1900, bookyear1906