104 ICONES MUSCORUM. 



TIIUIDIUM LEUCOXEURON, SidUv. cC Lesqx. 



Tab. 80. 



Plant,e huniiles, densius ca^spitantes, fastigiato-ramosoe, de- 

 misso-iiitricatas, lutescenti-virides vel fiavidulse, nitescentes. 



Caulis iiltrapollicaris, tenuis, irregulariter vage divisus, sub- 

 ])iniiatiiii raniulosus, ramulis brcvibus appressis. 



Folia erecto-aperta, laxius incuinbeiitia, ovato-lanceolata, tenui- 

 acuminata, toto ambitu serrulata, costa valida summo apice dis- 

 soluta ; paraphyllis imllis ; reti cellulis minimis snj)erne ovato- 

 rhomboideis inferne brevioribus cquilateralibus papillosis ; peri- 

 cliJBtialia oblonga, sensim in acumen longum subflexuosum den- 

 tatum attenuata, enervia. 



Flores dioici, in caule ramisve positi ; gemmoe masculae eras 

 siores, numerosse ; antheridiis numerosis, paraphysibus nullis. 



Capsula in pedicello laevi subcygneo ruljcllo minima, horizon- 

 talis, collo inflate ovata, subcurvata ; peristomii interni dentibus 

 punctulatis, ciliis tribus brevibus gracilibus interpositis ; operculo 

 longe conico-rostellato acuto vel apiculato ; annulo simplici lato. 



IIypxum leuconeurum, Sulliv. & Lesqx. Muse. Exsice. Amer. (ed. 2), 



No. 407^ 

 Thuidium leuconeurun, Lesqx. Mem. Calif. Acad. 1, p. 3L 



Hab. On the trunks of Qtiermis agrifolia, and on moist soil of 

 shaded hills, Oakland, California, Bolander. 



But for the absence of ])araphylla, this species is by all its 

 characters a true Thuidium. 



TAB. 80. — Thuidium leuconeuron. 

 1, 2. Plant;e feminei et maseuli natu- 6. Folium periehajtiale. 

 rail })itif/niliuJine. 7. Capsnla; operculatSB. 



.3. Pars rami et dispositio foliorum. 8. Particula peristomii. 



4. Folia. 9. Gemma mascula. 



5. Pericbuitium. 10. Antberidium. 



