VERTEBRALINA. 



[ 806 ] 



VESSELS. 



thecia, only they are mucli smaller ; they 

 occur either scattered among the perithecia, 

 or collected towards the margins of the 

 thallus. Species very mmierous. 



BiBL. Hook. Br. Ft. ii. pt. 1. 152 ; Leigh- 

 iow,Lich. Fl. 444 ; Schferer, Emtm. crit. 213 ; 

 Tiilasne, Aim. Sc. Nat. 3. xvii. 215, pi. 3, 



VERTEBEALI'NA, D'Orh.— A genus 

 of Porcellaneous Foraminifera, near Milioia. 



Char. Shell free, regular, greatly com- 

 pressed, mostly inequilateral, more convex 

 on one side than on the other, suborbicular 

 or elongate ; spire embracing in the young 

 state only, afterwards straight; chambersin 

 the spire, two or three; orifice a large 

 patulous apertm-e along the septal plane. 

 See Articulina and Renulites. 



One recent British species : 



V. striata (PI. 23. fig. 10). 



BiBL. Williamson, Bvc. For. 89 ; Car- 

 penter, Intrvcl. For. 72. 



VERTICIL'LIUM, Nees.— A genus of 

 Mucedines (Hyphomycetous Fungi), distin- 

 guished from Botrrjtis (under 



which it is included, with 



Fig. 800. 



Acrostalagmns, by Fries) 

 chiefly by the verticillate 

 arrangement of the spoiifer- 

 ous branches. A number of 

 species are described ; but, 

 from the observations of Iloft- 

 mann and Bail on the germi- 

 nation of Tricothecinm, this 

 genus represents only one 

 form of the plants belonging 

 to other genera, — V. niherri- 

 vtmn, Bonorden {Botrijtis rer- 

 ficilloidcs, Oorda, which Hulf- 

 maun regards as identical with v.itic-iiiium 

 Acrostalaf/mus 2)arasifaiis and cylimU-osporum. 

 cimmharimis), having been Magnified 200 



, p ., c T, • dinmetcrs. 



raised from the spores ot i ri- 



clwthecium rustnim, and its " spores " being 



barren (see Trichotiiecium). Berkeley 



and Broome describe and figure several new 



species. 



BiBL. Ann. N. II. 2. vii. 101, pi. 7. 

 figs. 15-18; Fries, Smn. Vvij, (Ilofri/tis), 

 491. 



See also Triciiotuecium. 



VESICULA'RIA, Thomps.— A genns of 

 Infundibulato Ctenostomatous Polyzoa, of 

 the family Vesiculariidic. 



V. spinosa, the only species, general on 

 marine shells, kc. 



BiBL. Thompson, Zool. Illustr. 98 ; John- 

 ston, Br. Zooph. 370; Hincks, Pobjz. 512. 



VESICULARITDJE.— A family of In- 



fundibulate Ctenostomatous Polyzoa. 



Char. Polypidom plant-like, horny, tubu- 

 lar ; cells free, deciduous, the ends flexible 

 and invertile. Genera : 



Serialaria (Amafhia). Shoots slender, 

 filiform, erect, branched ; cells tubular, ad- 

 herent, uniserial and unilateral, rows inter- 

 rupted by blank intervals ; tentacles eight. 



Vesicularia. Shoots branched, jointed ; 

 cells oval, distinct, uniserial and unilateral ; 

 eight tentacles, and a gizzard. 



J'alkeria. Variously branched ; cells oval, 

 irregularly clustered ; eight tentacles, no 

 gizzard. 



Miviosella. Variously branched ; cells 

 ovate, in two rows, opposite, jointed at the 

 base ; eight tentacles and a gizzard. 



Avcnclla. Filifonn, creeping, nearly 

 simple ; cells large, solitary, scattered, in one 

 row, slightly contracted at tlie top, curved ; 

 twenty to twenty-four tentacles, and a small 

 gizzard. 



Kolella. Cells erect, subcjdindrieal, 

 crowded on tubes which form an undefined 

 iucrusting mat ; tentacles eighteen. 



Bou-erbankia (PI. 18. fig. 19). Matted 

 and creeping, or erect and irregularly 

 branched; cells tubular, densely clustered'; 

 tentacles eight to ten, and a sti'ong gizzard. 



Farrella. As Bou-erbankia^ but tentacles 

 twelve to thirty, and no gizzard. 



Anguinella. Branched palmately, one 

 tube springing from another, largely com- 

 posed of mud ; animals with twelve tenta- 

 cles and no gizzard. 



BiBL. Johnston, Br. Zooph. 307 ; Gosse, 

 3Iar. Zool. ii. 19 ; Hincks, Pohjz. 512. 



VES'PA,Linn.- — Vcsjm vuhinris, thewasp, 

 and V. crahro, the hornet, are readily acces- 

 sible insects for the examination of the sting 

 (Sting). 



VESSELS OF Animals. See Arteries, 

 Lymphatic system, and Veins. 



VESSFJjS of Plants. — This name was 

 applied by the enrlier observers to various 

 elongaled (ubidar siriiclures of vegetable 

 tissues, I'rom an id(\a tliat t]u>y corresponded 

 with the vessels uf animals; and the name 

 is still retaini'd. The spiral, aiunilar, &c. 

 vessels are described under Si'Irai, Struc- 

 tures. The term vessel is now gent-rally 

 contrasted with duct, to indicate a single 

 long tubular cell, or row of conlliu'nt elon- 

 gated cells, with spiral (-econdary deposits 

 upon their walls, in contr-adistiucliun to a 

 canal formed of a row of cells, with pitted 



