LLAVEA. 



[ 476 ] 



LOPHOPUS. 



The general arrangement of the secreting 

 cells is observed in sections made with 

 Valentin's knife. 



In many animals, as fishes, the loading 

 of the cells of the liver with fat, which in 

 man represents the morbid state of fatty 

 degeneration, is normal, and renders it a 

 matter of some difficulty to distinguish 

 clearly the outlines of the cells, which are 

 also very delicate. 



BIBL. Kiernan, Phil. Tr. 1833 ; Kolliker, 

 Mik. Anat. ii. ; H. Jones, Phil. Tr. 1846, 

 and 1849; Guillot, Ann. Sc. Nat. 1848; 

 Leidy, Sill Jn. 1848 ; Beale, Liver, & How ; 

 Hering, StricJcer's Gewebel. i. 429 ; Kolats- 

 chewsky, Sch. Arch. 1877, xiii. 415 ; Frey, 

 Hist. 640. 



LLA/VEA, Lagas. A genus of Pteridese 

 (Polypodiaceous Ferns). One species ; 

 Mexico. (Hooker, Syn. Fil. 144.) 



LOASA'CE^E. A family of Dicotyledo- 

 nous Flowering plants, with stinging hairs 

 upon the epidermis. Loasa, Bartoma, and 

 Blumeribachia are often to be obtained in 

 gardens. 



LOCUST-BEANS. The seeds of Cera- 

 tonia siliqua are so called. 



LOFTU'SIA, H. B. Brady. A large fusi- 

 form arenaceous Foraminifer, consisting of 

 a spiral lamina, secondary oblique longitu- 

 dinal septa, and tertiary vertical divisions, 

 making the internal structure labyrinthic. 

 In texture similar to the higher Trocham- 

 rnince, Loftusia stands high amongst the 

 arenaceous forms, corresponding with Alveo- 

 lina in the Porcellaneous, and Fusidina in 

 the Hyaline group. Fossil in Persia. 



BIBL. Brady, Phil Trans. 1869, 751. 



LOMA'RIA, Willd. A genus of Pteii- 

 dea3 (Polypodiaceous Ferns). 



L. Spicant, often called Blechnum boreale, 

 is British. Many other foreign species. 

 (Hooker, Syn. 174.) 



LONCHI'TIS, Presl. A genus of Pteri- 

 dese (Polypodiaceous Ferns). Differs from 

 Pteris in the sori occupying the sinus ; 

 exotic (fig. 410). (Hook, Syn. 128). 



Fig. 410. 



Lonchitis pubescens. A pinnule with sori. 

 Magnified 10 diams. 



LO'PHIUM, Fr. A genus of Pyre- 

 nomycetes (Ascomycetous Fungi), remark- 

 ably distinguished by the form of the peri- 

 thecia resembling a bivalve shell with the 

 valves in situ (tigs. 411 & 412). The nu- 

 cleus contained within the carbonaceous 



Fig. 411. Fig. 412. 



Fig. 413. 



Lophium mytilinuui. 

 Pig. 411. A perithecium, seen side wise. 

 Fig. 412. The same, seen endwise. 

 Pig. 413. A perithecium cut open. 

 Magn. 25 diams. 



perithecium consists of erect asci mixed 

 with paraphyses, containing minute spores, 

 and soon falling away into a powder. L. 

 mytilinum, Pers. (figs. 411-13), occurs on 

 the bark or naked wood of fir trees. L. 

 elatum, Carm., also occurs on fir wood. 



BIBL. Berk. Br. Fl ii. pt. 2. 280 ; Fries, 

 Syst. Myc. ii. 533 ; Summa Ve.g. 401 ; Gre- 

 ville, Sc. Crypt. Fl. pi. 177. 



LOPHOCO'LEA, Neea. A genus of 

 Jungermannieae (Hepaticse), including J. 

 bidentata, L., and J. lieterophylla, Schrad., 

 growing in moist situations, at the roots of 

 trees, &c. 



BIBL. Hook. Brit. Jungerm. pis. 30, 31 

 Br. Fl ii. pt. 1. 122. 



LOPHO'MONAS, Stein. A genus of 

 Flagellate Infusoria. 



Char. Free, ovate, spherical or fusiform, 

 with an anterior tuft of long slender 

 flagella. 



Two species; intestines of Blatta. &c. 

 (Kent, Inf. 321.) 



LOPHOPH'ORUS, Br. A genus of 

 Copepodous Entoinostraca. 



L. insignis. In marine dredgiugs, Dur- 

 ham. (Brady, Copep.. Ray Soc. i. 121.) 



LOPHOPO'DIUM, Ktz.-A doubtful 

 genus of Oscillatoriaceae, allied to Amphi- 

 thrix. 6 spec., on submerged stones and 

 posts. 



BIBL. Rabenh. Fl. Eur, Alg. ii 231 



LOPH'OPUS, Dumortier. A genus of 

 freshwater Polyzoa, of the order Hippo- 

 crepia, and family Plumatellidae. 



Char. Polypidom sacciform, hyaline, ge- 

 latinous, with a disk serving for attachment ; 



