STEHEOCAULON. 



[ '37 ] 



STICTEI. 



globe with eiglit biciliatecl green cells, 

 placed at equal distances on the equator. 



liiHL, Cohn, Siff). cV lui/lilc, Zeitschr. iv. 

 77, Ann. X. II. x. 321, pi. ; Mic. Jn. vi. 

 131; Kabenh. Alff. iii. 100; iircher, Qu. 

 Mic. Jn. 18G-J, 110. 



STEREOCAU'LON, Schreb.— A genus 

 of Cladodei (Licheuaceous Lichens). 8, 

 jjdschale, the most distinct species, is abun- 

 dant on rocks and stones in mountainous 

 districts. Thallus greyish and rough, apo- 

 thecia conglomerated, blackish brown ; sper- 

 mogonia in little brown heads, near the 

 apothecia. Other species. 



BiBL. Hook. Br. Fl. ii. pt. 1. 237; Tu- 

 lasue, Ann. Sc. Nat. 3. xvii. 197 ; Enyl. Bot. 

 pi. -1^^ ; Leiirhton, Lich. Fl. Ii9. 



STEREONE'MA, Kiitz. — A supposed 

 Alga of the family Phasonemere (Kiitzing), 

 stated by Cohn, however, to consist of the 

 decaying stalks of Anthophysa. (Kiitz. 

 Sp. Ah). IGO.) 



STE'REUM, Fr. — A genus of Auricula- 

 rini (Ilymenomycetous Fungi), character- 

 ized by its coriaceous substance, and even 

 hvmeuium without bristles, as in Hymeno- 

 chctte. 



The species are numerous, amongst which 

 Stereum hirsuiutn is one of our commonest 

 Fungi. 



BiBL. Fr. Fp. 548; Berk. Outl. t. 17. 

 f. 7; Cooke, Handb. 316. 



STERIG'MATA.— The term applied by 

 Tulasne to the filaments forming the pedi- 

 cels of the spermatia in the Fun«i (PI. 26. 

 figs. 2, 3). 



STERROM'ONAS, Kent.— A genus of 

 Flagellate Infusoria. Free, elongate, with 

 two flagella, the longer rigid, the shorter 

 flexible and vibratile. 8. formicina, in 

 vegetable infusions, salt and freshwater. 

 (Kent, Inf. 420.) 



STICIIIDIA. — Pod-shaped processes of 

 the fronds of Florideous Algte, containing 

 the tetraspores imbedded in them (fig. 157, 

 p. 236). 



STICHOCIL'E'TA, CI. and Lachm.— A 

 genus of Hypotrichous Infusoria, fam. Oxy- 

 trichina. Free, elongate, narrowed and 

 with cirri in front, and with styles and 

 setae behind, ^S". pedicuUformis \ marine. 

 (Kent, Inf. lib; CI. & Lachm. Inf. 

 152.) 



STICHOCOC'CUS, Xiig.— A genus of 

 Palmellacese, consisting of very minute, ob- 

 long, thin- walled, green cells, single, or usu- 

 allv arranged in rows. <S'. bacillaris (PI. 3. 

 fig.' 25), on damp decaying wood, especially 



of willows, walls, &c. (Rabenhorst, Fl. Ahj. 

 iii. 47.) 



STICIIOSTE'GIA, D"()rb. (Rhabooi- 

 DEA, Schultze).— lJ"Orbigny arranged all 

 Foramiuifera having uniserial or linear 

 growth under this head as an Order; but, 

 besides the many straight Nodosarince, 

 there are several rectilinear forms of other 

 genera belonging to dilferent Natural 

 Orders, as Litiiold, Puvonia, ArticuUna, Sec, 



STICIIOTRICIIA, Perty. — A genus 

 of Hypotrichous Infusoria. Elongate, va- 

 riable, narrowed in front; outer anterior 

 cilia very long, in a lateral row ; often con- 

 tained in a cyUndrical carapace. 



Several species; salt aud freshwater. 

 (Kent, l7if. 775; Perty, Lebensf. 153.) 



STIC'TA, Ach.— A genus 6f Phyllodei 

 (Lichenaceous Lichens), with a tough fo- 

 liaceous thallus, growing over rocks and 

 trunks of trees, mostly in mountainous dis- 

 tricts. *S'. jmlmonaria forms large shaggy 

 fronds of olive-green colour when fresh, 

 pale-brown when dry, pitted and reticu- 

 lated ; apothecia mostly marginal, red- 

 brown. Spermogonia occur scattered on 

 the upper surface, mostly near the ends of 

 the lobes. 



BiBL. Hook. Br. Fl. ii. pt. 1. 208; Tu- 

 lasne, Ann. Sc. Nat. 3. xvii. 169, pi. 1 ; 

 Engl, Bot, pi, 572; Leightou, Lich. Flor. 

 111. 



STICTEI, Fries.— A group of Ilelyel- 

 lacei (Ascomycetous Fungi), containing 



Fig. 697. 



Fig, 698. 



Stictis versicolor. 



Fig. 697. An open disk, emerged on the surface of 



wood, hating an irregular border. 

 Fig. 698. Vertical section of the same. 

 Magnified 20 diameters. 



Fig. 699. Asci and paraphyses from the last. Magni- 

 fied 20U diameters. 



several genera of plants, growing on wood, 



3b 



