BROOKE'S APrAPtATUS. [ 121 ] 



BRYOBIA. 



that they do not difler by well-marked dia- 

 racters i'loiu tlie spoc-ies of Monucercn. 



13IBL. Wcrueck, Bcr. Bed. Ak. 1841, 

 377. 



BROOKE'S APPARATUS. Intro- 

 duction, p. xxi. 



BRUCHIA'CE/E.— A family of inoper- 

 culate Acrocarpous Mosses, gregarious or 

 Cfespitose and terrestrial, in which the fruit- 

 stalks sometimes appear lateral, through 

 arising from innovations. The stems dwarf, 

 either simple or branched by innovations ; 

 the leaves lanceolate or awl-shaped from a 

 more or less oval base, composed of paren- 

 chymatous cells, larger and sometimes lax 

 at the base of the leaf, smaller and squarish 

 toward the apex, and furnished with a flat- 

 tened broad nerve (fig. 49), and standing up 

 like bristles ; the pericha^tial leaves broader 

 at the base and sheathing ; all of firm mem- 

 branous character, shining and smooth. 

 Capsules oval or globose, mostly straight- 

 beaked ( iig. 50). British genera : — 



Arc/tidunn. Calyptra completely en- 

 closing the (globose) capsule, biu'sting above. 

 Inflorescence moncf'cious, bud-shaped. 



Astomum. Calyptra dimidiate. Capsule 

 equal. Inflorescence either monoecious, 

 gemmif orm and axillary, or witb the anthe- 

 ridia and archegones together. 



BRU'OHUS, Linn.— A genus of Coleo- 

 pterous Insects. 



B. jnsi is a common small beetle ; black, 

 mottled with white. The larva feeds upon 

 peas. Several other species. 



BiBL. Stephens, Brif. CUeopt. p. 204; 

 Boisduval, L'Entomol. Horticole, p. 1-57. 

 BRU'CIA. See Alkaloids. 

 BRYA'CE^-E.— A family of operculate 

 Mosses, acrocarpous, or by innovation pleu- 

 rocarpous, with lan- 

 ceolate, oval, round, 

 or spathulate leaves, 

 composed of cells pa- 

 rallelogrammic below, 

 rhomboidal - paren- 

 chymatous above, 

 more or less dense, 

 with much chloro- 

 phyll or a persistent 

 primordial utricle, or 

 at length empty, very ^| 

 smooth. Capsule more '17- ,• . , • .^.■, 



, J^ , , Miehchoferia nitida. 



or less pear-.shaped, ,, ^, ^ 



d. *^ 1 S- ' leeth Irom the peiistome. 



avate, oval or cylm- Magnified 150 diameters. 



drical. Mith a hemi- 

 spherical or conical operculum, erect, nod- 

 ding or pendulous. External peristome, 



when present, soft, lamellose, internal 

 membranous. British genera : — 



Mii'lichoferia. Calyptra conical-dimi- 

 diate, split at the side. Peristome wanting 

 or simple, then of sixteen equidistant, fili- 

 form, liattish, articnlat(>d pale teeth, some- 

 times placed on a sliort, sulcate, reticulate 

 basilar mi>mbraue (fig. 81). Capsule late- 

 ral, with a double annulus. 



Orthodontium. Calyptra smallish, hood- 

 shaped, fugacious. Peristome arising below 

 the orifice of the capsule, double; external : 

 of sixteen lanceolate-subulate teeth, like 

 those in Bryuin ; Avhen dry, deflexed below 

 the orifice of the capsule, when moistened, 

 erect; internal: cilia alternating with the 

 external teeth, half as long or about equal, 

 filiform, from a short, somewhat keeled 

 membrane. Capsule annulate or exannu- 

 late, with a lougish collum. 



Bn/um. Calyptra dimidiate, smallish, 

 hood-saaped. Peristome double (fig. 82) ; 



Fig. 82. 



Bryum intennedium. 



A portion of the peristome. 

 Magnified 150 diameters. 



external of sixteen lanceolate, soft, yel- 

 lowish equidistant teetli, flat on the back 

 and transversely trabeculated, with a flexu- 

 ous longitudinal line in the middle, lamel- 

 late within, hygroscopic ; internal a large 

 delicate membrane with sixteen keels, pro- 

 duced into more or less perfect lanceolate 

 teeth, often with intermediate cilia, some- 

 times without. Capsules mostly annu- 

 late. 



BiBL. See Mosses. 



BRYO'BIA, Kocli.— A genus of Aca- 

 rina, family Trombidina. 



Char. Legs 0-jointed ; fore legs longest ; 

 eyes near the hind angles of the cephalo- 



