79 



Nederst paa Stammen ligge Spiklerne tæt sammen 

 aden at ligge paa hverandre; almindeligst er lier Dobbelt- 

 stjernen, kun yderst sjelden træffes en Spindel. Dobbelt- 

 stjernerne ere her rigere paa Straaler end de paa 

 Basaldelen, ligesom Midtpartiet oftere er besat med Vorter 

 eller Takker; de ere fra 0.128—0.140""" lange, fra 0.104 

 — 0.112™" brede i Enderne; Midtpartiet er dels 0.032""" 

 bredt, Fig. 13. dels er det saa optaget af Vorter, at det 

 er næsten lige saa bredt som Enderne, Fig. 14. Spind- 

 lerne ere meget takkede med afstumpede, brede Ender; de 

 ere lige og krumme om hinanden og ere 0.128""" lange, 

 0.048""" brede, Fig. 15. Midt paa Stammen ligge Spiklerne 

 ikke saa tæt sammen som paa den nederste Del; Dobbelt- 

 stjernenie med mange Straaler og et nøgent Midtbelte ere 

 de almindeligste ; yderst sjeldent sees en Firling. Dobbelt- 

 stjernerne ere fra 0.088—0.136""" lange, fra 0.068—0.096""" 

 brede i Enderne, og fra 0.032—0.044""" brede paa Midten, 

 Fig. 16 — 19. Firlingerne nærme sig ligesom paa Stammens 

 nederste Del enten Korsformen eller Dobbeltstjernen, Fig. 

 20. 21 ; de ere fra 0.096—0.128'"'» lange, fra 0.080—0.088™'» 

 brede. Jo længere op paa Stammen, man kommer, jo 

 mere spredte ligge Spiklerne, men Dobbeltstjerneformen 

 er ogsaa her gjennemgaaende. 



Paa Grenene, især de tykkeste, ligge Spiklerne lige 

 saa tæt som paa Stammens Midtparti. Stjerneformen 

 er den hyppigste, men noget forskjellig fra den, jeg tidligere 

 har omtalt. Spiklerne ere i det Hele tåget betydelig 

 mindre, fra 0.048—0.082'»"' lange, fra 0.028—0.044"™ 

 brede i Enderne og fra 0.008 — 0.024""» brede paa Midten; 

 Straalerne ere enklere, Midtpartiet i Regelen mere lang- 

 strakt, Fig. 22 — 26. En Firling, nærmende sig Dobbelt- 

 stjernen, er meget sjelden; den er omtrent lige lang som 

 bred med et tornet Midtparti, Fig. 27. 



Paa Smaagrenene eller Stilkene ere Spiklerne yderst 

 sparsomme; de ere enkle i Formen, meget smaa og have 

 en mørkegul Farve. De hyppigste ere Klubber, næsten 

 glatte; de ere omtrent lige store, 0.056'"'" lange, 0.028 mm 

 brede i den tykke Ende. Skaftet er kort og afrundet, 

 Fig. 28 — 30. Foruden disse sees en, der ligner en Dobbelt- 

 stjerne, 0.076""" lang, 0.044'"'" bred i Enderne, 0.024""" 

 bred paa Midten, Fig. 31; men saa fattig Spikeldannelsen 

 er paa disse Smaagrene, saa meget rigere bliver den, 

 strax Polyperne optræde. 



Paa Polypens Bagkrop ligge Spiklerne paatvers i 

 Længderækker og vise sig under Form af Spindler, Valser 

 og Dobbeltstjerner. Spindlerne ere meget takkede, have 

 afstumpede, takkede Ender og ere for det meste lige; de 

 ere fra 0.104—0.120""" lange og fra 0.040—0.044"'"' brede, 



At the foot of the stem, the spicules are placed 

 close together without, however, lying upon each other; 

 in this situation, the bistellate form usually appears; 

 only extremely rarely is the fusee met with. The bistel- 

 lates are, here, richer in rays than those of the basal part, 

 whilst, the mesial part is frequently occupied by warts 

 or spikes; they measure from 0.128 — 0.140 mm in length, 

 and from 0.104—0.112""" in breadth at the extremities; 

 the middle part measures 0.032""" in breadth (fig. 13), and 

 is, partly, so occupied by warts, that it is almost as broad 

 as the extremities (fig. 14). The fusees are much spicated, 

 have obtusely rounded, broad, extremities, and are, sometimes 

 straight, and sometimes bent; they measure 0.128'"'" in 

 length, and 0.048'"'" in breadth (fig. 15). In the middle 

 of the stem, the spicules are not placed so closely together 

 as upon the lowest part; the bistellates with numerous 

 rays and a bare mesial belt are the most usual forms; 

 only very rarely is a quadruplet seen. The bistellates 

 measure from 0.088 — 0.136""" in length, from 0.068 — 

 0.096""" in breadth at the extremities, and from 0.032 — 

 0.044""" in breadth at the middle (figs. 16—19). The 

 quadruplets approach, like those of the lowest part of 

 the stem, either to the cruci-form, or to the bistellate 

 form (figs. 20. 21); they measure from 0.096 — 0.128""" in 

 length, and from 0.080—0.088""" in breadth. The further 

 up the stem we approach, the more dispersed do the 

 spicules become, but the bistellate form is, also, here, met 

 with throughout. 



Upon the branches, especially the thickest ones, the 

 spicules are as close-set as upon the middle part of the 

 stem. The stellate form is the most frequent, but some- 

 what different from that I have previously spoken of. 

 The spicules are, altogether, considerably smaller, mea- 

 suring from 0.048—0.082"'"' in length, from 0.028—0.044'"'" 

 in breadth at the extremities, and from 0.088 — 0.024""" 

 in breadth at the middle. The rays are plainer, and the 

 middle part is, usually, more elongate (figs. 22 — 26). A 

 quadruplet approaching to the bistellate form is but rare; 

 it measures about as long as it is broad, and has an 

 aculeated mesial part (fig. 27). 



On the small branches or stalks, the spicules appear 

 extremely sparingly; they are plain in form, and have a 

 dark yellow colour; they are most frequently clavates, 

 are almost smooth, and about uniform in size, measuring 

 0.056""" in length and 0.028""" in breadth at the thick 

 extremity. The shaft is short and rounded (figs. 28 — 30). 

 Besides these, one resembling a bistellate is observed, 

 and it measures 0.076""" in length, 0.044""" in breadth at 

 the extremities, and 0.024""" in breadth at the middle 

 (fig. 31); but however poor the spicular formation is upon 

 these small branches, so much the richer does it become 

 whenever the polyps appear. 



On- the posterior body of the polyps, the spicules are 

 situated transversally, in longitudinal series, and appear in 

 the form of jfusees, rollers, and bistellates. The fusees 

 are very spicate, and have blunted spicate extremities ; they 

 are usually straight and measure from 0.104 — 0.1 20""" 



