. 72 



o.lGd""" lange og fra 0.060—0.104""" brede, Fig. 7—10. 

 Imellem disse Spikler sees Firlinger i Form af Timeglas. 

 besatte med Knuder, 0.108»"" lange. 0.070"™ brede, Fig. 11, 

 eller i Korsform, tildels rigt ornamenteredc, 0.128"™' lange, 

 0.120""" brede, Fig. 12, eller besatte med et større eller 

 mindre Antal Vorter; disse sidste ere omtrent lige lange 

 som brede, 0.120""" i Gjennemsnit, Fig. 13. 14; Klubber, 

 som ere kun lidet besatte med Vorter, fra 0.092—0.124"™ 

 lange og fra 0.052—0.056"'"' brede foroven, Fig. 15. 16. 

 eller bladede med et kort, enten tornet eller nogent Skaft, 

 fra 0.100— 0.128""» lange og fra 0.052—0.088""" brede 

 foroven, Fig. 17. 18; endelig hist og her nogle Spikler, 

 der nærme sig Korsformen og ere enten næsten glatte eller 

 tornede; de ere fra 0.084 — 0.112""" lange og fra 0.056 — 

 0.060 brede. Fig. li). 20. 



Paa Stammen, der ligeledes er meget rig paa Spikler, 

 ligge dog disse ikke egentlig paa hverandre, men slutte sig 

 tæt sammen, især paa dens nederste Del. De almindelig- 

 ste ere sammensatte Stjerner. Dobbeltstjerner, bladede 

 Klubber, Kosetter og Firlinger. 



De sammensatte Stjerner ere meget forskjellige i 

 Form og. som tidligere berørt, er det kun ved at sønder- 

 lemme dem, at Stjerneformen fremkommer altid mere eller 

 mindre tydeligt; de ere fra 0.104—0.176""" lange og fra 



0.060—0.108 brede. Fig. 21—23. Dobbeltstjernerne ere 



i Regelen forsynede med et nogent Midtparti og Straalerne 

 ofte brede, bladformede; de ere fra 0.092 — 0.136' 

 lange og fra 0.052—0.092"™ brede, Midtbeltet er fra 

 0.016—0.036'""' bredt. Fig. 24 — 28. Klubberne have 

 nogen Lighed med en Blomsterbuket, Skattet ei' i Alminde- 

 lighed kort og bredt: de ere fra 0.060 — 0.108""" lange og 

 fra 0.052—0.080""" brede, Fig. 29—31. Rosetterne ere 

 meget forskjelligt formede og strøede indimellem Stjerne- 

 spiklerne; de ere omtrent lige lange som brede, i Gjennem- 

 snit variert de fra 0.024— 0.080 Fig. 32—36. Firlin- 



gerne tindes overalt paa Stammen, dog kun enkeltvis, og 



ere fra O.060— 0.104 lange og fra 0.064—0.124""" brede, 



Fig. 37 — 40; enkelte af Firlingeme have ndpræget Kors- 

 form; deres Længdestok er fra 0.196 — 0.216""" og Tver- 

 stokken fra 0.096—0.152""". Fig. 41. 42. Kun yderst 

 sjeldent sees en Spikel. der nærmer sig Dobbeltkuglen ; 

 begge de afrundede Ender ere besatte med Tome og Midt- 

 partiet er nogent; de ere 0.096""" lange, 0.068""" brede i 

 Enderne; Midtbeltet er 0.024 bredt. Fig. 43. 



sometimes warted. at 



the extremities ; they measure trom 

 and from 0.060—0.104""" in 



length 



0.104—0.160»'»' in 

 breadth (Pl. VIII, figs. 7 — 10). Between these spicules, 

 quadruplets, of hour-glass form, are observed, beset with 

 knots and measuring 0.108""" in length. and 0.070""" in 

 breadth (Pl. VIII, fig. 11); or cruciform, partly. riehly 

 embellished, and measuring 0.128""" in length, and 0.120""" 

 in breadth (Pl. VIII, fig. 12); or. beset with a larger. or 

 smaller, number of warts; the last mentioned are about as 

 long as they are broad. and measure 0.120""" in diameter 

 (Pl. VIII, figs. 13. 14); also, clavates, which are only slightly 

 beset with warts, and measure from 0.092 — 0.124""" in 

 length, and from 0.052—0.056'""' in breadth above (Pl. 

 VIII, figs. 15. 16); or. they are foliaeeous, with a short, 

 either aculeated or bare. shaft. and measure from 0.100 — 

 0.128'""' in length. and from o.o52— 0.088""" in breadth 

 above (Pl. VIII, figs. 17. 18); finally. there an' seen here 

 and there. a few spicules which approach tu the cruci-form, 

 are,*either, almost smooth, tir aculeated, and which measure 

 from 0.084— 0.112""" in length. and from 0.056—0.060""" 

 in breadth. (Pl. VIII. figs. 1!». 20). 



On the stem, which is likewise verv rich in spicules, 

 they are not. Innvever, exactly placed upon each other, but 

 they dose together. especially upon its lowest part. The 

 most frequent forms are. eompli'x stellates, bistellates, 

 foliaeeous clavates, rosettes, and quadruplets. 



The complex stellates are very variable in tonn. and. 

 as previously alluded to. it is only upon breaking them up 

 that the stellate form appears, always more or less dis- 

 tinctly; they measure from 0.104 — 0.176""" in length. and 

 from 0.060— o.l OS»»» i„ breadth (Pl. VIII. figs. 21—23). 

 The bistellates are. as a rule, furnished with a bare mesial 

 part, and the rays are. frequently, broad and foliaeeous; 

 from 0.092—0.136" 



they measure 



0.052—0.092 iu 



from 0.016— 0.036™ 

 The clavates have 

 flowers ; the shaft 

 measure from 0.060- 



in length, and from 



breadth. The mesial belt measures 



■ in breadth 1 Pl. VIII. figs. 24—28). 



much resemblance to a bouquet of 



is, usually, short and broad, and they 



—0.108 in length. and from 0.052— 



0.080 in breadth (Pl. VIII, figs. 29—31). The rosettes 



are very various in form, and are strewn in amongst the 

 stellate spicules; they are about as long as they are broad, 

 and their diameter varies from 0.024— 0.080""" (Pl. VIII, 

 figs. 32 — 36). The quadruplets are met with everywhere 

 on the stem. but only singl v; they measure trom 0.060 — 

 0.104""" in length. and from 0.064—0.124""" in breadth 

 (Pl. VIII, figs. 37 — 40); a few of the quadruplets have 

 distinguished cruci-form; their longitudinal arm measures 

 from 0.196—0.216""". and the transversal arm from 0.096 

 —0.152""'' (Pl. VIII. figs. 41. 42). Only very rarely is a 

 spicule seen which approaches to the double sphere in 

 form ; both of its rounded extremities are beset with 

 aculeæ, and its mesial part is bare; it measures from 

 0.096""" in length. and 0.068"™ in breadth at the extre- 

 mities. The mesial belt measures 0.024'"'" in breadth 

 (Pl. VIII. fig. 43). 



