PROFESSOR BABINGTON ON RUBUS IN 181)1. 285 



lojulil an alga that resembles our plantlet very much. The only 

 specimen, however, that I have been able to study is barren, and 

 of more robust growth than the South African species ; it also 

 lacks its base and root I cannot make out whether it has any 

 creeping branches or a layer of hair-like cortical cells at its base ; 

 but the anatomical structure is so exactly alike that, were it not for 

 the enormous distance that separates South Africa from Cahfornia, 

 the habitat of Tcenioma Cleveland ii FarL, I should feel inclined to sink 

 this species into Saimmmia miniata. For prudence sake, and for 

 lack of the cystocarps, I abstain from doing this now. I hope to 

 receive more Sairomoiia material, and may perhaps return to the 

 (question of its systematic position at some later time. 



Explanation of Plate 359. 



Fig. 1. Diagrammatic figure of the upper part of a stem of Stvconienia 

 miniata : 1. 1. lateral tube ; c. f. cortical cells. 2. Cross-section through a vege- 

 tative branch: 1. 1. lateral tube; c. c. cortical cells. 3. Branched stichidia with 

 two rows of tetrasporangia 4. Diagranuiaatic figure of a part of a stichidiuni 

 with one sporangium bearing tetraspores and two empty ones ; the cortical cells, 

 after dividing themselves, push forth to the empty tetrusporangium, and consti- 

 tute an entire layer of new cells : c. c. cortical cells ; e. s. empty sporangia ; .s. c. 

 stalk cell. 5. Cross-section of stichidia : c. c. cortical cells ; L /. half of the lateral 

 tube after the first vertical division (the stalk cell is of course invisible in this 

 section) ; s. sporangium. 6. Antheridium. 7. Tangential section of an anthe- 

 ridium, showing the empty mother-cell of the articulated filaments and the stalk 

 cell at the base of each large empty cell ; drawn with camera lucida, Oc. 1, Obj. E, 

 Zeiss. 9. A single articulated filament ; Oc. 1, Obj. F, Zeiss. 10. Ripe cystocarp 

 of medium size. 



PROFESSOR BABINGTON ON RUBUS IN 1891. 



[Professor Babington, some years before his death, had nearly 

 completed a work which he hoped to publish as a "Revision of 

 British Rubi." Ill health unfortunately prevented him from 

 finishing it ; and so much additional light has been thrown on 

 the subject since he was last able to deal witli it (/. e. in 1890 

 or 1891), in consequence of Dr. Focke's visits to this country and 

 the increased activity of British students of the genus, that very 

 much of what he left in MS. is now necessarily out of date. To so 

 great an extent, indeed, is this the case, that I believe no British 

 batologist who read it through could desire the publication of the 

 work as it has been left. I have ventured, however, to recomnaend 

 the printing of the completed introduction, as well for its own 

 intrinsic value as on account of the position the Professor so long 

 occupied as our greatest authority and most patient teacher and 

 guide in our study of these puzzling plants. No British botanist 

 who realizes even partially the invaluable work done by him 

 tln-oughout the course of his long professorial career can, I think, 

 fail to be both interested and mstructed by this fragment of his 

 last work for us. With Mrs. Babington's permission, I have also 



