TRIC] 



Ctje Er^afiurj) of SSatann. 



1166 



and resembling at first, when closely exa- 

 mined, minute fragments of chopped hay. 

 It was, we believe, in more recent times 

 flrst noticed, particularly, in Osbeck's voy- 

 age ; but there is some reason to believe 

 that the phenomenon was known to ancient 

 mariners, and that the Red Sea, where it 

 has been lately observed, derived its name j 

 from it. One circumstance which has more i 

 especially attracted the notice of naviga- J 

 tors is, that while sailing through the 

 ! scum, not only a disagreeable pungent 

 j smell has been perceived, but the mucous 

 ; membrane of the eyes and nose have been 

 1 affected, inflammation of the eyes and 

 ! severe sneezing being induced by it. It 

 i is not, indeed, the only plant of the same 

 j natural order that has noxious'properties, 

 1 some of the common species of Oscillatorice 

 emitting an odour like that of Chara, 

 | which in certain cases is strong enough to 

 i produce headache. [M. J. B.] 



I TRICHODIUM. The three species which 



! were formerly described under this genus 



i of prasses, are now placed in Agrostis by 



Steudel and others. . [D. MJ 



! TRICHOGASTRES. A natural order of 



j gasteromyeetous Fungi, comprising those 

 genera which have in an early stage a 

 sinuous eoniplicatedcrumb-likehymenium, 

 enclosed in a common peridium consisting 



j of one or more distinct coats, and at ma- 

 turity breaking up into a dusty mass of 

 spores mixed with threads. It is closely 

 connected with Podaxinei through the 

 genus Polyplodum, which is equally dusty 



I when mature, though retaining traces of 

 the walls of the hymenium. The most 

 familiar instances are the common puff- 

 balls, which are found in almost every part 

 of the world. Batarrea is connected with 



' the phalloid fungi by its gelatinous volva. 

 The species love open exposed situations, 

 though a few are always found in the shade. 

 One or two are esculent. [M.J. B.] 



TRICHOGLOTTIS. A small genus of 



orchids, belonging to the Vandece. They 



are epiphytal herbs, with linear or linear- 



! lanceolate coriaceous or fleshy leaves, and 



; flowers on short lateral or leaf-opposed few 



or one-flowered peduncles. It comes near 



Phalcenopsis, but the inflorescence is suf- 



' flcient to distinguish it. The species de- 



l scribed are from Tropical Asia. [ W. B. H.] 



' TRICHOGYNE. The name of a genus of 



j undershrubs or herbs, natives of the Cape 

 of Good Hope and of the Mediterranean 

 region, and belonging to the family Com- 

 posites. The leaves are sessile, membra- 

 nous, densely woolly; the flower-heads in 

 terminal tufts, rarely in axillary whorls. 

 The involucre consists of a small number 

 of loosely imbricated scales ; the receptacle 



I is scaly at the margin, elsewhere naked; 

 and the pappus of the female flowers is 

 absent, that of the male flowers consisting 

 of one row of hairs, which are feathery at 



j their points. [M. T. M.] 



! TRICIIOLJENA. The species which were 



i formerly described under this genus of 



grasses, along with a few others, form the 

 section Tricholcena of the great genus 

 Panicum, in Steudel's Synopsis. [D. M.] 



TRICHOLEPIS. A genus of Indian her- 

 baceous plants, of the family Compositce. 

 The leaves are narrow, serrated and sessile. 

 The involucre consists of very numerous 

 overlapping scales, which are hair-like, and 

 recurved at the points. The receptacle has 

 a number of small scales terminating in 

 fine hairs ; and the pappus is various, either 

 of one or of more rows of rough scales, 

 confluent below or disunited, or sometimes 

 altogether wanting. [M. T. M.] 



TRICHOLOBUS. A genus of Connara- 

 cece, consisting of trees, natives of the 

 islands of the Indian Archipelago. The 

 flowers have five lance-shaped sepals, and 

 as many petals; ten stamens, alternately 

 long and short, united together below ; a 

 sessile one-celled ovary, containing two 

 ovules, and surmounted by a short style, 

 and a dilated stigma. The capsule is ses- 

 sile, and opens by two valves. [M. T. M.] 



TRICHOLOMA. Glossostigma. 



TRICHOMA. The filamentous thallus of 

 algals, as Conferva. 



I TRICHOMANES. A very extensive and 



also a very varied and beautiful genus of 



I ferns, typical of the tribe Tnchomaninew of 



i the Polypodiacece. It belongs to the series 



-n ith free veins and urn-shaped or tubular 



: involucres, and is distinguished from Lox- 



i soma by its pellucid texture, and from Feea 



! by its monomorphous fronds. The fronds 



are either simple pinnate or decompound, 



usually membranaceous in texture, and 



pellucid The sori are seated in extrorse- 



Trichoraanea pinnatum. 



marginal cups, either sunk in or free on 

 the margins of the fronds : the veins being 

 continued into filiform exserted sometimes 

 capitulate receptacles, free within the cups, 

 and bearing the sessile lenticular spore- 

 cases near their base. The involucres or 



