GLOSSARY AND INDEX. 



155 



SorUS (plu. sori) (Gr. autpo^, a heap 

 or cluster), the clusters of fruit in the 



PoLY)'ODIACEyE. 



Spatulate (Lat. spatula, a little 

 spoon), shaped like a spatula. 



Species, 43. — How to determine, 68. 



Specific Names, 41- 



Spermaphytes (Gr. a-nipii.a, a 

 seed, and ^utoi', a plant), 10, 20, 50. — 

 Literature of, 59. 



Spinulose (Lat. spina, a thorn), 

 thorny. 



Spleenwort. yide Aspleni- 

 um. 



Sporangiunri (plu. sporangia) (Gr. 

 (TTTopo?, a seed, and ayyo%, a vessel), 

 the case or capsule enclosing the 

 spores, 10. 



Spore (Gr. <nrop6<;, a seed), the fruit 

 of the higher cryptogams, produced 

 ase.\ually, 10, 18. 



Sporocarp (Gr. trn-opos, seed, and 

 Ko-pno-i, fruit), the fruit-bearing re- 

 ceptacle in Marsilia, etc. 



Squamous (Lat. sguama, a scale), 

 with appressed scales. 



Stellate (Lat. stella, a star), star- 

 shaped. 



Stipe (Lat. stipes, a stock), the stem 

 of a frond, 8, 25. 



Stoma (plu. stomata) (Gr. a mouth), 

 the breathing pores of plants, 26, 33. 



Stramineous (Lat. strajnen< 



straw), straw-colored. 

 Struthiopteris. Vide Ono- 



clea. 

 Sub- (as a prefi.x), about, nearly, 

 somewhat. 



Sub-Orders, 44- 



Subulate (Lat. subula, a shoe- 



maki-r's awl), awl-shaped. 

 Superior, higher, applied to indusia 



that are attached above the sorus as 



in x>> yo/it I 's. 

 Synonymy, 4.^- 



Taenitis, 88; also 6, 13, 76. 



Ternate (Lat. terni, three each"), 

 branching into three nearly equal di- 

 visions. 



Tertiary Agre, Pteridophytes of, 

 66. 



Thallophytes (Gr.eaAAos, ayoung 

 shoot, and i^vrov. a plant), a group of 

 plants including the lichens, fungi, 

 and algae, 50. 



Thalloid (Gr. OaXAds, a young shoot, 

 and eiSos, form), having the form of a 

 thallus, i.e., no leafy axis. 



Thalloid Phase, 19. 



Tissues, 24. 



Tissue Systems, 25. 



Tomentose (Lat. tomen/um, a 

 stuffing of wool), covered with mat- 

 ted woolly hairs. 



Tomentum (Lat. a stuffing of 

 wool), the dense matted woolly hair 

 found on some ferns as many species 

 of Cheilanthes. 



Tri- (Lat. tris, three), (as a prefix) 

 three, thrice. 



Tribes, 44- 



Trichomanes, 122; also 6, 11,17, 



79- 



Trichomes (Gr. Vf. hair), hairs, 

 variously modified as scales, indusia, 

 sporangia, etc., produced from the 

 epidermal cells, 26. 



Triquetrous (Lat. triguetrus), 

 three-angled. 



Truncate (Lat. truncare, to cut 

 short), cut off abruptly. 



Tufted, growing in clusters. 



u 



Undulate (Lat. undula, a little 



wave), wavy-margined. 

 Uredineae, 51.— Literature of, 58. 



Vallecula (plu. vallecula), the 

 grooves on the stems of Equisetutn. 



Variation among species, 2. 



Varieties, 44 



Vascular (Lat. vascnlunt, diminu- 

 tive of ras, a vessel), containing ves- 

 sels, as ducts, etc. 



Velum (Lat. a fwr/aiw), the membra- 

 nous margin of the fovea in Isoetes. 



Venation (Lat. vena, a vein), the 

 veining of the frond. lo. 



