228 Haynes : The genus Sphaerocarpos 



early instead of remaining permanently in tetrads, in its subglobose 

 archegonial involucre with a small orifice, instead of being long- 

 tubular with orifice the diameter of the involucre. In both ot 

 these species the foot remains attached to the capsule on the de- 

 tachment of the latter from the thallus ; the spore markings are 

 somewhat similar. In 5. Domicilii, the spores separate at maturity, 

 their markings are areolate instead of typically cristate, and they 

 are characterized by a coarsely lobed basilar margin. 



The description and drawings published by Professor Camp- 

 bell in his " Notes on Sphaerocarpus " (Erythea 4 : 73-77. 1 896) 

 probably relate chiefly to this species. 



6. Sphaerocarpos stipitatus Bisch.; Lindenb. Nova Acta Acad. 



Leop.-Car. Nat. Cur. 18: 504 i. pi. 36. 1836 

 Sphaerocarpus Berterii Mont. Ann. Sci. Nat. II. 9 : 39. Ja 1838. 



— Nees, Naturgesch. Eur. Leberm. 4: 369. 1838. — Mont. 



& Nees, in d'Orbigny, Voy. Am. Merid. f : 50. 1839.— 



G. L. & N. Syn. Hep. 595. 1846. — Mont. Syll. Gen. Sp. 



Crypt. 95. 1846. 

 Sphacr ocarpus Berteroi Stephani, Bull. Herb. Boiss. 7: 657. 1899. 



Archegonial thallus suborbicular to oblong, 2 mm. in diam- 

 eter, in thick cushion-like tufts, light green when dried, margin 

 divided into 4-8 cuneate, ascending, somewhat undulating lobes, 

 marginal cells generally quadrate, averaging 26-39 I 1 > archegonial 

 involucres 1.5-2 mm. high, distinctly stipitate (the slender stipes 

 O.5-O.65 mm. long), tubular-ovoid, ellipsoidal, or bluntly conical, 

 more or less narrowed to the truncate apex, fleshy, carnose- 

 opaque, its wall apparently more than one cell thick, orifice 

 large, of nearly the diameter of the involucre, setulose, the hyaline, 

 thick-walled setulae mostly 2 cells long, incurved : antheridial 

 thallus not seen : capsule 340-420// in diameter; the persistent 

 spore-tetrads yellowish, coarsely areolate and somewhat rough- 

 ened, marginate. [Plate 32.] 



Habitat : Growing in moist places, on the border of ditches. 



Type locality : Quillota, Chile. 



Specimen examined : B. Bertero, 695, August and September 

 1829, in the herbarium of the Museum d'Histoire Naturelle of 

 Paris, France. 



The description of the capsule and spores has been derived 

 from literature mentioned above. 



New York Botanical Garden 



