Specific 



A DICTIONARY 



Sphere-crystals 



individuals of which differ but 

 slightly among themselves and 

 are sharply distinguished from 

 those of other groups. Tliey 

 reproduce themselves from 

 seed for successive genera- 

 tions with little or no varia- 

 tion. Compare Genus and 

 Variety. 



SPE'CIEg-HY'BRlD, see Hybrid. 

 SPEClF'IC, relating to species. 



SPEgiF'lC CHARACTERS, the 

 features which distinguish the 

 plants of one species from 

 those of all others. 



SPEgLF'IC NAME, the name of 

 the species, forming a part of 

 the botanical name; trivial 

 name. 



SPECIMEN, a plant or portion of 

 a plant prepared and preserved 

 for study. 



SPER'MAGONE, see Spermogo- 

 NIUM. 



SPERMAgO'NIUM, see Spermo- 



GONIUM. 



SPER'MAPHORE, see Spermo- 



PHORE. 



SPERMATIF'EROUS, bearing 

 spermatia. 



SPERMA TIUM (pi. Sperma'tia), a 

 non-motile male gamete (sper- 

 matozoid) in the red algae. 

 Also applied to certain mi- 

 nute non - germinating spore- 

 like bodies in fungi, some of 

 which have been regarded as 

 functionless male gametes. 

 Many of these are now 

 known to be stylospores capa- 

 ble of germination. 



SPER'mAtOCYST, the mother- 

 cell of a spermatozoid. 



SPERMATOZO'ID, see Anthe- 

 rozoid and Spermatium. 



SPERMATOZOON (pi. Spermato- 

 zo'a), see Antherozoid. 



SPERM - CELL, a male repro 



ductive cell (gamete). Com- 

 pare Germ-cell,. 



SPERM'IC, pertaining to seed. 



SPERMID'IUM (pi. SpSrmid'ia), an 

 old term for achenium. 



SPERM NUCLEUS, the nucleus 

 of a male gamete (male pro- 

 nucleus) which coalesces with 

 the nucleus of a female gamete 

 (female pronucleus) to form a 

 germ-nucleus; spermo-nucleus. 

 In the pollen-tube it is called 

 the generative nucleus, which 

 see. 



SPER'MODERM, the covering of 

 a seed, consisting of the sever- 

 al coats taken together; seed- 

 coat. 



SPERMOGO'NIUM (pi. Spermogo'- 

 nia), a cell or receptacle in 

 which spermatia are produced. 



SPERMO-NU'CLEUS, see Sperm- 

 nucleus. 



SPERMOPHORE, an old term, 

 applied both to funiculus and 

 placenta. See Trophosperm. 



SPER'MOPHYTE, a plant which 

 produces true seeds instead of 

 spores; a flowering plant. 



SPERMOTHE'CA, an old term for 

 pericarp. 



SPER'MOUS, see Spermic. 



SPHACELATE, dark and with- 

 ered as though dying or dead; 

 like a sphacelium. 



SPHAQE'L$A, a former genus of 

 fungi, now known to be the 

 first or conidia-bearing stage 

 of Claviceps when it appears 

 as the spur or ergot. 



SPHACE'LltJM, see Sphacelia. 



SPH.E:rAPH'IDE§, sphere - crys- 

 tals, especially if composed of 

 needle-shaped parts. 



SPHERE - CRYS'TALg, spherical 



aggregations of crystals, either 



irregularly united or having a 



radiating structure. Compare 



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