sene] 



Ct)e Erca^urg at 2S0tang, 



1050 



SENEGRE. (Fr.) Trigonella famum 

 grcecum. 



SENEKA-ROOT. The root of Poly gala 

 Senega. 



SENEVE. (Fr.) Sinapis. 



SENGREEN. Sempervivum tectorum. 



SENI, SENARIUS. In sixes. 



SENNA. The leaflets of several species 

 of Cassia used in medicine for their pur- 

 gative properties ; it is often adulterated 

 with the leaves of Solenostemma Arghcl, 

 Tephrosia Apollinea, Coriaria myrtifolia, 

 &c. — , of the Chilenos. Myoschilos ob- 

 longus. — , ALEPPO. Cassia obovata. — , 

 ALEXANDRIAN. Cassia acutifolia and 

 C. obovata. — , AMERICAN. Cassia mari- 

 landica. — , BLADDER. Colutea arbores- 

 cens ; that of the Cape is Sutherlandia fru- 

 tescens. — , INDIAN. Cassia elongata. — , 

 MECCA. Cassia elongata. — , NUBIAN. 

 Cassia cetliiopica. — , SCORPION. Coro- 

 nilla Emerus. — , SENEGAL. Cassia obo- 

 vata. — , TINNEVELLY. Cassia elongata. 

 —.TRIPOLI. Cassia cetliiopica. — , WILD. 

 Poinciana pulcherrima; also an American 

 name for Cassia marilandica. 



SENNA-TREE. Cassia emarginata. 



SENSITIVE PLANT. Mimosa sensitiva; 

 also M. pudica, Oxalis sensitiva, and others. 

 — , BASTARD. JEschynomene americana. 

 —, WILD. Cassia nictitans. 



SENUS. The sixth. 



SENVY. Sinajris nigra. 



SEPALS. The divisions of the calyx. 

 Hence sepaline, belonging to a sepal ; 

 and sepaloid, resembling a sepal in appear- 

 ance. 



SEPAWN, SEPON. Maize-meal boiled 

 in water, used as food in the North Ame- 

 rican States. 



SEPEDONIUM. Almost everyone who 

 is accustomed to observe Fungi in our 

 woods has been at times struck with a 

 peculiar condition of Boleti, in which they 

 become mouldy, and when broken are filled 

 with a yellow powder, and have frequently 

 a nasty fishy smell. This arises from their 

 being attacked by a naked-spored mould, 

 S. chrysospermum, which consists of loose- 

 branched threads, bearing at their tips 

 rather large echinulate spores. Other spe- 

 cies occur on Helvellce, Pezizce, Geoglossece, 

 &C, varying in colour and in the structure 

 of the spores, which are interesting micro- 

 scopical objects. A rose-coloured species, 

 winch occurs occasionally on Pezizce, is 

 worth attentive examination. [M. J. B.] 



SEPICOLOUS. Inhabiting hedgerows. 



SEPTAL. Of or belonging to a septum. 



SEPT AS. A genus of Crassulacew, con- 

 sisting of two species inhabiting the Cape 

 of Good Hope, and having the habit of 

 some species of Saxifraga. They are her- 

 baceous, and have tuberous roots, simple 

 stems, opposite or verticillate leaves, and 



white almost umbellate flowers. The calyx 

 is from five to nine-cleft; and the petals sta- 

 mens scales and carpels are from five to 

 nine in number. They are old inmates 

 of our gardens; but their uses are entirely 

 unknown. [B. S.] 



SEPTATE. Partitioned off by septa. 



SEPTENATE, SEPTENOUS. Growing 

 in sevens. 



SEPTFOIL. Tormentilla officinalis. 



SEPTICIDAL. A mode of dehiscing, in 

 which the fruit is resolved into its com- 

 ponent carpels, which split asunder 

 through the dissepiments. 



SEPTIFORM. Having the appearance 

 of a dissepiment, as is the case with the 

 placenta of some plants, as Plantago. 



SEPTIFRAGAL. A mode of dehiscing, 

 in which the backs of the carpels separate 

 from the dissepiments, whether formed 

 by their sides, or by expansions of the 

 placenta. 



SEPTILE. Of or belonging to dissepi- 

 ments. 



SEPTORIA. A genus of coniomycetous 

 Fungi, resembling externally minute spe- 

 cies of Sphceria, but producing naked 

 spores instead of asci and sporidia. The 

 spores are frequently filiform and curved, 

 and are either continuous or septate. 

 Many of the species occur only on living 

 leaves, on which they are true parasites ; 

 but others are as constantly found on 

 white or discoloured spots which have lost 

 their vitality, and are separated from the 

 living portion more or less definitely by a 

 coloured ring, and are then only distin- 

 guished from Defazea by their structure. 

 In these cases possibly they may be mere 

 secondary forms of other plants, but in 

 the true parasites the same supposition is 

 not so well founded. It is indeed con- 

 jectured that many analogous productions 

 are mere sexual forms of larger Fungi, 

 but this is mere conjecture, however sug- 

 gestive of further inquiries. [M. J. B.] 



SEPTULUM. A little partition of any 

 kind. 



SEPTUM. The partition of an ovary or 

 fruit produced by the sides of the carpels 

 brought together and consolidated ; also 

 a partition of any kind. 



SEQUAMETL. A Mexican name for 



Agave americana. 



SEQUOIA (including Wellingtonia). A 

 genus of the Abietince tribe of Coniferce 

 from North-western America, closely allied 

 to Sciadopitys, and distinguished from it 

 principally by its peltate scales without 

 bracts, and five to seven seeds. Only two 

 species are known with certainty, S. sem- 

 pervirens and S. Wellingtonia (Wellingtonia 

 gigantea of Lindley). both trees of extra- 

 ordinary height. 8. gigantea of Endlicher 

 is a nonentity, being founded upon a 

 sterile branch of Pinus bracteata, coupled 

 with Douglas's account of S. sempervirens. 



