1 fi'-l 
TRICHIA.] TRICIIIACE^. 
Genus 33.— TRICHIA Haller, Hist. Stirp. Helv., iii., p. lU 
a768) Sporangia stalked or sessile; sporangmm-wall mem- 
branous, sometimes charged with granular naatter ; capillitium 
veUow or brown, consisting of free elastic threads, pointed at 
each end, and thickened with two to five spiral bands; spores 
reticulated, or minutely warted. 
KEY TO THE SPECIES OF TRICHIA. 
A. Spores reticulated, or marked with broken bands :— 
Elaters 7 to 8 //- wide, spores reticulated, border 2 //. wide, 
1. T.favoginea 
Elaters 4 to 5 wide, spores reticulated with narrow bands, 
border 1 /a wide, sporangia stalked. 2. T. verrucosa 
Elaters 4 to 6 /a wide, spores reticulated with broad pitted 
bands, border 0-5 to 1 w. wide, sporangia sessile. 
3. T. affinis 
Elaters 4 to 6 yu, wide, spores with broken reticulation of 
broad pitted bands, border 0*5 /a wide, sporangia sessile. 
4. T. pei'similis 
Elaters 4 to 6 /a wide, spores very closely reticulated, border 
none, sporangia sessile. 5. T. scah'a 
B. Spores minutely warted : — 
A. Spirals of elaters two. ^. T. varia 
B. Spirals of elaters three or more — 
a. Elaters shortly tapering at the ends — 
Sporangia sessile, wall uniformly thickened with 
granular matter ; elaters smooth or spinulose. 
7. T. contorta 
Sporangia stalked, wall membranous, with rounded 
areas thickened with granular deposits ; elaters 
spinose. 8. T. erecta 
b. Elaters smooth, very gradually tapering at the ends — 
Stalk hollow, filled with spore-like cells. 
9. T. fallax 
Stallc soHd. 10. T. Botrytis 
1. T. favoginea Pers., in Rom., N. Mag. Bot., i., p. 90 (1794). 
Plasmodium ? Sporangia globose, ovoid, or clavate, crowded, 
sessile or shortly stalked, on a membranous hypothallus ; O'G 
to 0"7 mm, broad, 0*7 to 1*9 mm. high, ochraceous-yellow ; 
mass of spores and capillitium orange-yellow ; sporangium-wall 
membranous, minutely thickened with u-regular strise. Stalk 
membranous, rarely present. Capillitium of long cylindrical 
elaters 7 to 8 /x diam,, smooth or with scattered spines, thickened 
