ANBURY. 



[ 41 ] 



ANEMIA. 



AN'BURY, or Ambury, popularly club- 

 root or tingers-and-toes, is a di.sease peculiar 

 to the Brassicacete. It consists in the for- 

 mation of galls or warts, often of large size, 

 on the lower part of the stems and the 

 roots. It has been attributed to various 

 causes : in some instances, the larv8e of a 

 weevil have been found within the galls, to 

 which their origin might fairly be attribu- 

 ted. The Aphidaj have also been supposed 

 to produce these tumours; this Buckton de- 

 nies. The later researches of Worouin have 

 ti-aced this disease to the agency of an ally 

 of the Myxomycetes, called Plasmodiophora 

 Brassiccp. 



BiBL, Johnson, Gordener^s Diet. p. 31 ; 

 Buckton, Aphides {Ray Soc), ii. p. 20; 

 Worouin, Priiif/sheim Jahrb. xi. p. 548 (pis.). 



AXCHOREL'LA, Ouvier.— A genus of 

 Crustacea, of the order JSiphonostoma. 



Cliar. Body short, produced in front into 

 a Ivind of neck, which is transversely rugose ; 

 arms two, furnished with a sucker or adhe- 

 sive disk at the end, and contlueut through- 

 out their length. 



Two British species — 



A. uncinata (PL 19. fig. 7), milk-white ; 

 found on the gills and gill-covers of the cod, 

 haddock, and whiting; length about 1-2". 



A. rugosa, found ou a species of cod; 

 length about 1-3". 



I'he above characters refer to the female. 



BiBL. Baird, Brii. Entom. p. 336. 



ANCYR'IUM, Werneck. — An obscure 

 genus of Infusoria. 



Char. That of an Enterodelous Bodo, with 

 a moveable setaceous foot. 



6 (?) species. 



BiBL. Wemeck, Ber. d. Bed. Ak. 1841, 

 p. 377. 



ANCHYLOS'TOINIA, Dubini.— A genus 

 of Nematoid Entozoa. 



A. duodeNali'i=Uochmit(s duod. 



A. di/sent erica (PI. 53. tig. 4) is of doubt- 

 fid position. It is about 1-100" in length ; 

 cuned and transparent in front, yellow and 

 opake behind, and expanded at the base. It 

 is tirmly attached to the mucous membrane 

 in large numbers ; and occurs in the dejec- 

 tions of diarrhoea and dysentery in hot cli- 

 mates. 



BiBL. Douuon, Parasites ^-c. 1877; Beau- 

 regard, Mic. 1<*>80, p. 610. 



ANCYRO'MOXAS, Kent 

 flagellate Infusoria, fam. Monadidte. 



Char. Ovate or elongate, free or adherent ; 

 flagellum single, trailing at the end, vibra- 

 tile elsewhere; a nucleus and vesicle present. 



A genus of 



A. sigmoides, among decaj-ing Fueus, 

 Jersey ; length 1-5000". 



BiBL. Kent, Infiis. p. 247. 



ANCYS'TR0PU8, Kohl.— A Pferoi)tus, 

 found on Egyptian bats; dull yellow, with 

 blackish markings, legs brown. JNIurray, 

 Ec. Ent. p. 180 (tig.). 



ANDRzE'A, Ehr. — A genus of Mosses. 



See ANCRiEACEiE. 



ANDR.'EA'CE^-E.— A family of Schisto- 

 carpous Mosses, characterized especially by 



Fig. 10. 



Fig. 11. 



Fig, 

 Fig 



Andraea rupestris. 



10. A sporange not yet open. 



11. A sporange burst into four valves, united at 



their points. Magnified 20 diameters. 



the peculiar mode of splitting of the fruit, 

 somewhat analogous to that which is found 

 in Ju7}germaimia, the urn-shaped capsule 

 di\-iding perpendicularly when ripe into 

 four or eight valves, which usually remain 

 attached together at their points (figs. 10 

 and 1 1) . But the capsules always differ from 

 those of Jungermannia in the presence of a 

 columella. The cells of the leaves are pa- 

 renchymatous, with their walls thickened, 

 and somewhat papillose on the surface. The 

 calyptra at first covers the capsule entirely, 

 then splits off" as a mitre-shaped or bell- 

 shaped cup. The archegonia and antheiidia 

 are either on the same or distinct plants, 

 and the latter terminal on distinct branches. 

 The few British species are natives of rocky, 

 usually alpine 

 districts, and 

 belong to the 

 ^&a.\x&Andrcea. 

 In Acrochis- 

 ma, an antarc- 

 tic genus, the 

 sporange splits 

 only part of 

 the way down. 

 BiBL. Wil- 

 son Brilol. Group of sporanges bursting to dis- 

 r. I, •-,-,' charge the spores. Magnified. 



Britann.^.W. 



ANE'MIA (v4?2(»? /ma), Swartz. — A genus 

 of Schizseaceous Ferns (fig. 12), 



Anemia mandioccana 



