645 
MUSCI. (mosses.) 
1. A. pliascoidcs, Brid. Stems at first erect, simple (2"-3" 
high), afterwards decumbent and increased by innovations to 8"-10" 
in length; leaves of the stem and branches lanceolate, entire, the 
nerve disappearing below the summit; perichaetial leaves ovate-lan¬ 
ceolate, concave, toothed at the apex, the nerve excurrent; areola) 
rhomboidal, large. — On the ground, meadows and waste fields. 
2. PHASCUM, L. Phascum. 
Calyptra conic-bell-shaped or cucullifoim. Capsule terminal, 
indehiscent. Inflorescence monoecious or dioecious. (4>d<rico*', an 
ancient generic name for Moss.) 
* Inflorescence dioecious : calyptra mitriform. 
1. P« crassmervitllll, Schwoegr. Leaves lance-awl-shaped , 
rigid, erect, strongly and irregularly denticulate, the strong nerves ex¬ 
current , sometimes vanishing at base ; capsule globular, nearly sessile. 
— Moist grounds. About 1" high, furnished at the base with con- 
ferva-like filaments (pseudo cotyledons); sterile flower terminal. 
2. P. coll&rens, Hedwig. Leaves ovate-lanceolate , serrate, 
nerve vanishing at the apex; in other respects very like No. 1. 
* * Inflorescence monoecious : calyptra cuculliform. 
3. P. €11 Spiel SI til III, Schreber. Stems simple or forked- 
branched (1"- 2" high) ; leaves erect , ovate-lanceolate , entire, the nerve 
excurrent; capsule immersed,roundish; pedicel short; spores smooth. 
— Clayey soils. Ster. fl. with paraphyses, and but oneperigonial leaf. 
4. p. crispum, Hedwig. Stems usually branched (3" -6" 
high) ; leaves lance-awl-shaped , entire , crisped when dry , the nerve per- 
current; capsule nearly spherical, immersed. — Waste fields. — Ster¬ 
ile flower gemmiform, axillary. 
5. P. alteruifdliuin, Bruch & Schimper. Stems erect, 
branched (4"-7" high); leaves lanceolate , spreading ; perichffitial 
leaves awl-shaped from an ovate base; nerve excurrent; areolae 
rather square ; capsule oval, immersed, pedicelled. — Dry soils. Ster¬ 
ile flower axillary, gemmiform, destitute of paraphyses. 
3. BRUCHIA, Schwaegr. Bruchia. 
" Calyptra mitriform, laciniate at the base. Capsule terminal, 
oval, apophysated, beaked, indehiscent. Inflorescence dioecious: 
sterile flower terminal, gemmiform. (Named for Prof . Bruch , a 
distinguished museologist.) 
1. B. flexuosa, B. & S. Stems mostly simple; leaves ob¬ 
long-ovate, pointed, the strong nerve continued into a Jong an exu 
ous eroded-denticulate point; capsule oblong-pear-shape , wit 
short acute beak. (Phascum flexuosum, Schwwgr . Bruchia vaginacea, 
Hook, IVils. in Drumm. Southern Mosses.)—Damp ground, Penn. 
