JOUENAL 



OF THB 



ROYAL MICROSCOPICAL SOCIETY. 



JUNE 1889. 



TEANSAGTIONS OF THE SOCIETY. 



VI. — A Revision of the Trichiacete, By Geobge Masseb. 



CRead 10th April, 1889.) 



Plates V., VI., VII., and VIII. 



Trichiaeeas, Eost. (emended). — Sporangia sessile or stipitate, dehiscing 

 irregularly or in a circumscissile manner near tlie apex, wall of sporan- 

 gium single or double, without lime (except in Hemiarcyria para- 

 doxa) ; capillitium without lime, elaters free, or attached to the wall 

 of the sporangium, or sunk in the hollow of the stem, either simple, or 

 branched, or combined into a net, and furnished with raised bands or 



EXPLANATION OF THE PLATES. 

 Plate V. 



Fig. 1. — Trichiainte7rn,edia,MsiS8.,tipo^ elsbter, x 1200 ; la, spores of same, X 1200. 

 „ 2. — Trichia abrupta, Cooke, tips ot eiateiB, X 500; 2a, spore of same, x 1200. 

 „ 3. — Trichia snlphurea, M.iiss., tips of elaters, X 500; 3a, spore of same, x 1200. 

 „ 4. — J'n'cAia 5a//oifm, Mass., tips of elaters, X 500; 4a, spore of same, x 1200. 

 „ 5. — JrJc^M /acK, Kost., tips of elaters, X 500; 5a, spore of same, x 1200. 

 „ 6. — Trichia superba, Mass.,] entire plant, x 50; 6a, tip of elater, x 1200; 6b, 



spore, X 1200. 

 „ 7. — Trichia affinis, De Bary, spore, X 1200 ; la, spore showing a free end on the 



raised network, x 1200. 

 „ 8. — Trichia Kalbreyeri, M.SiSS., tip 0? e\a\eY, x 1200: 8a, sjjore of same, x 1200. 

 „ 9. — Trichia verrucosa, Berk., group of plants springing from a broad hypotlial- 



lus, X 50 ; 9a, spore of same, X 1200 ; 96, tip of elater of same, x 1200. 

 „ 10. — Trichia chrysosperma, Kost., spore, X 1200 ; 10a, tip of elater of same, X 



1200. 

 „ 11. — Trichia nitens, Fr., tip of el»tev, X 1200; 11a, spore of same, x 1200, 

 „ 12. — Trichia nana, Mass., elater, X 400 ; 12a, spore of same, X 1200. 

 „ 13. — Trichia scabra, Rost., plant nat, size ; 13a, tip of elater, x 1200 ; spore, X 



1200, 



Plate VI. 



Fig. 14. — Trichia fragilis, Rost., botryoid form, x 50; 14a, elater, X 400; 146, tip of 

 elater, x 1200 ; 14c, spore, X 1200. 



„ 15. — Tric/ija CaWy?eawa, Mass., gronj) of plants, nat. size; 15a, plants, X 50; 156, 

 portion of wall of spoiangium seen from the inside, and showing 

 numerous amorphous lumps of organic matter arranged in clubters, x 

 300; 15c, tip of elater, x 500; 15c?, spore, x 1200. 



„ \6.— Trichia heterotrichia, Balf. fil., spore, x 1200; 16a, tip of elater, x 1200. 



„ 17. — 2V8c/«a uarj'a, Rost., normal spore with minute rounded warts, x 1200; 17", 

 spore of same, showing the warts with a tendency to become elongated, 

 thus forming a transition to the section having sfoies witli flat, rai.-.cd 



1889. 2 A 



