Sorufi 



Sperm 



So'rus, pi. So'ri (<rw/>6s, a heap), (1) 

 a cluster of sporangia in Ferns ; (2) 

 inSynchitrieae, a group of sporangia 

 from a single swarm-cell ; (3) a 

 heap of soredia forming a powdery 

 mass on the surface of a thallus. 



spadic'eous, apadi'ceus (<nradit-, a palm- 

 branch), (1) as to colour, date- 

 brown ; (2) having the nature of, 

 or bearing a spadix ; spa'dicose, 

 resembling a spadix ; Spa'dix, a 

 spike with a fleshy axis, as in 

 Aroids. 



Span, usually about nine inches, 

 between the extremities of the 

 thumb and little finger, DODBANS ; 

 sometimes the small span of seven 

 inches is intended, the space be- 

 tween the thumb and middle finger 

 when stretched out. 



Spanan'thus (viravos, scarce, av6o$ t a 

 flower), having few flowers. 



Sparga'nium-cor'tex (the genus Spar- 

 ganium, + CORTEX), applied to 

 fossil stems with a vertical system 

 of fibrous strands which do not 

 anastomose, as Medullosa. 



spart'oid (airdpTos, esparto grass, 

 eldos, resemblance), used by Fayod 

 for persistent mycelium which is 

 corticated. 



sparse, spar'sus (Lat., spread open), 

 scattered ; sparsiflo'ms (flos, floris, 

 a flower), with scattered flowers ; 

 sparsifo'lius (folium, a leaf), with 

 scattered leaves. 



Spathe, Spath'a (air^O-i], a spatula), a 

 large bract enclosing a flower 

 cluster, usually a spadix ; ~ Valves, 

 the bract-like envelopes beneath 

 the flowers in certain Mono- 

 cotyledons, as Allium and Nar- 

 cissus ; spatha'ceous, -ceus ( + aceus), 

 spathe-bearing, or of the nature 

 of a spathe ; spathae'us, J having 

 a very large spathe (Lindley) ; 

 spa'thal, spa'tbate, spathed, fur- 

 nished with a spathe ; Spatnel'la, 

 an old name for the glumes of 

 grasses, sometimes also the paleae 

 were included ; Spathel'lula, a 

 palea of a grass ; SpathiTla, J a 

 secondary spathe, as in the 



inflorescence of Palms ; spa'those, 

 spathe-like ; spath'ulate, spathu- 

 la'tw, spat'ulate, oblong, with the 

 basal (proximal) end attenuated 

 like a druggist's spatula. 



Spawn, mycelium. 



Spe'cies (Lat. , a shape, kind, or sort), 

 the particular kind, the unit in 

 classification, the aggregate of all 

 those individuals which have the 

 same constant and distinctive 

 characters ; they may be distin- 

 guished as biologic ~, morpho- 

 logic ~, or physiologic ~, ac- 

 cording to the basis of discri- 

 mination ; <-- Hy'brid, a hybrid 

 between two species of the same 

 genus ; ~ Soror'es, Schroter's term 

 for any two species of Uredineae 

 which inhabit two distinct hosts, 

 but show no morphological differ- 

 ence, as in Puccinia; specific, 

 relating to a species ; ~ Cen'tre, 

 the particular spot where the 

 species is supposed to have origin- 

 ated ; <- Char'acter, the diagnostic 

 which separates one species from 

 another ; <~ Name, the Latin ap- 

 pellative appropriated to a given 

 species, usually an adjective, but 

 sometimes a substantive used ad- 

 jectivally. 



Spec'imen (Lat., an example), a plant 

 or portion of one, prepared for 

 botanic study. 



spec'tans (Lat., looking), "se in- 

 vicem spectantia folia," = opposite- 

 leaved. 



Spec'tropbore (spectrum, an appear- 

 ance, 0o/oew, I carry), apparatus 

 designed by Reinke to determine 

 the action of the different rays of 

 light in the elimination of oxygen 

 by plants. 



Speir'anthy (o-Treipa, a twist, &veos t a 

 flower), when a flower assumes a 

 twisted form. 



Speire'ma (o-Trei/^a, a fold or coil), 

 in Lichens, a gonidium. 



Sper'gulin, a fluorescent substance 

 occurring in the seeds of Spergula. 



Sperm (uirlpiw., a seed) Cell, a male 

 reproductive cell, as (a) an anther- 



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