Haynes: THE GENUS SPHAEROCARPOS 221 
Sphaerocarpos terrestris, minima Mich. Nov. Pl. Gen. 4. pl. 3. 
1729. — Dill. Hist. Musc. 536. pl. 78. f. 77. 1741. 
Sphaerocarpos Micheli Bell. App. ad Fl. Pedem. 52. 1792 (fide 
auctorum); Mém. Acad. Roy. Sci. Turin 5: 258. 1793; 
Usteri Ann. Bot. 15: 87. 1795. 
Sphaerocarpus terrestris J. E. Smith, Eng. Bot. p/. 299. 1796. — 
Bisch. ~. . Nova Acta Acad. Leop.-Car. Nat. Cur. 13: 829- 
838. pl. 4g. 1827.—Lindenb. pg. ». Nova Acta Acad. Leop.- 
Car. Nat. Cur. 18: 496. p/. 36. 1836.—Nees, p. p. Natur- 
gesch. Europ. Leberm. 4: 365. 1838.— Stephani, /. f. Bull. 
Herb. Boiss. '7: 656. 1899.— Pears. pf. p. Hep. Brit. Is. 482. 
pl. 215. f. I-14. 1902. —K. Miller, in Rabenh. Krypt.-Fl. 
Deutschl. Oesterr. & Schweiz 6: 316. f. 790, r9Z. 1907. 
—C. Douin, Rev. Bryol. 30: 44-57. f. 8-27. 1903; 34: 
105-112. f. I-37, 11, 15. 1907; 36: 37-41. f. 1-3, 5, 6, &. 
1909. 
Sphaerocarpus lagenarius Dumort. Comm. Bot. 78. 1822. 
Sphaerocarpus utriculosus Dumort. doc. cit. 
Sphaerocarpus terrestris, 3? utriculosus Dumort. Hep. Eur. 164. 
1874. 
Archegonial thallus orbicular to obovate, 0.6 —13 mm. in 
diameter, densely cespitose, bright green when living, yellowish 
brown when dried, forking several times, lobes short, orbicular, 
margin ascending or incurved, marginal cells generally quadrate, 
33-66 #; archegonial involucres 1.5—2.5 mm. high, sessile, thickly 
crowded together so as almost entirely to conceal the thallus, pyri- 
form, obovoid, or subglobose, orifice small, cells at orifice 
creniform, quadrate or oblong, 66-85 # x 39-59 u: antheridial 
thallus cuneate to orbicular, 1 mm. in diameter, the rounded lobes 
curving over the involucres, these 260-330 # in height, purplish : 
capsule averaging 7504 in diameter, the bulbous foot remain- 
ing in thallus on detachment of capsule; spores permanently 
united in tetrads, these go-120 mw in diameter, greenish or 
brownish black, finely and regularly areolate, meshes small, 
7-15 4 in diameter, each, occasionally, with a single median 
papilla, ridges low excepting at points of intersection, where they 
are raised into very acute or acicular spicules, these 7-12 y in 
height. [Prate 25. ] 
Hasirat: Damp sandy clay ; “in clover fields” (England). 
Tyre Locatity: Florence, Italy. 
Disrrisution: Italy, France, Germany, England, and Pantel- 
leria Island (between Sicily and Tunis). 
