ON CALIFOKNIAN MOSSES. 



It is, indeed, with some misgiving, that I add two new species to this group of B ar- 

 bulae already too much divided. But I have no other alternative but to do it, or to 

 recall as mere varieties a number of forms considered as species by other authors, and 

 whose characters arc of the same kind and no more definite. 



16. Baebula o o n v o 1 u t a Eedw. 



On rocks near San Francisco. May. 



17. Barbula W a h 1 i a n a Schultz. 

 Clay soil, San Francisco. 



18. Baebula Bolanderi Spec. nov. Gregaria, dioioa. Caule brevi simplici] vel fasoiculatim comante- 

 rauioso; Foliis inferioribus brcvibus apcrtis, suporioribus dense in rossulam imbrioatis rcflexis lingulatis vol ob- 

 longis obtusis vol ncrvo crasso fusco pcrcurrcnte brcvi-apiculatis, margins m.cdio rcflexis, raro revolutis, quando- 

 quo planis; areolatione basilari quadrato-elongata laxa pcllucida superne densa ohlorophyllosa quadrata-polygona 

 papillosa. Periohrotialibus internis brevioribus. Capsula in pedioello brovi rubello orasso, cylindrica erecta vol sub- 

 cornua atro-sanguinea ; operculo rostrato obtusiuseulo. Peristomii dentibus graoilioribus tortilibus rubellis granu- 

 losis; membrana basilari angusta tessellato luteo-albida ; annulo brevi simplici pcrsistcnte. Planta mascula gra- 

 oiliori, fotnincis intormixta. Perigonialibus brcvibus, c basi late ovata superne lanecolatis obtusis, antlieridiis 

 paucis paraphysibus quo duplo Iongioribus apieo inflatis. 



A fine species allied to B a r b u 1 a m a r g i n a t a Bryol. Eur. Rocks near the Bay 

 of San Francisco. Abundant. 



19. Baebula am pic xa Spec. nov. Gregaria, dioioa, priori valde affinis. Caule simplici brevi ; foliis laxe 

 imbricatis apcrtis lingulatis Iongioribus mollibus obtusis ncrvo valido sub apice evanido instruotis ; areolatione basi 

 laxa quadrato-elongata, superior! densiori polygona pellucida ccliloropliyllosa ; Perieluctialibus internis binis clon- 

 gatis, vaginulam arete amplectentibus, erectis apiee tantum subito rcflexis ; Capsula in podiccllo rubello brevi, 

 oylindrica ereota broviori, colore pallide-viridi ; oporculo recto obtuso pallida rubello. Peristomio, annulo flore que 

 masculo priori similibus. 



Tins species is distinct from the former, especially by its soft leaves with empty areola- 

 tion ; by the long internal pcrichactial leaves, erect and embracing the vaginula and the 

 base of the pedicel, and only refiexed at the summit ; by the shorter, smaller capsule and 

 shorter lid of a different color. Near San Francisco. May. 



20. BARBULA mural is Hedw. 



A few specimens of this species were sent, mixed with Barbula flcxifolia 

 limp, labelled : On rocks near San Francisco. 



21. Barbula laevipila Schw. 



The Californian species appears a reduced form of the European. It lias shorter stems, 

 shorter leaves, and a slender capsule. On clay soil in Mount Diabolo. May. 



