KONGL. SV. VET. AKADEMIENS HANDLINGAR. HAN 



n 25. n:o 5. 127 



Long. 40, lat. 47, lat. isth. 10, Ipng. proc. circ. 14 /u. T. XV, f. 26. 



To Professor V. B. Wittkock, of Upsala, I take the liberty of dedicating this 

 species, in token of the benefit I have derived from the perusal of his researches, and 

 as a trifling aeknowledgment of his kind interest coneerning this memoar. 

 97. S. uncinatum, n. sp. S. submediocre, circ. quinta parte latins quam longura; seini- 

 cellulis late cuneatis, dorso truncatis, erenatis, processubus 6 uneinatis (2 inter quemque 

 angulum) ornatis, ventre inflatis, niarginibus semic. plus minus crenato sinuatis; an- 

 gulis 2 — 3, in cornua rugosa productis, paullo divergentibus, apicibus furcatis vel for- 

 eipatis; centrali parte frondis kevi; sinn brevi rotundato. A vertice visum 2 — 3- 

 gonum; 2-gonum fusiforme, 3-gonum triangulare, lateribus paullo eonvexis. 



Long. 37, lat. 46, lat. isth. 9, crass. 2-gonum 13 /u. T. XVI, f. 3, also in 

 Waelicii Mscr. No. 67 ex. p. 



Near to S. scorpioideum Delp. (Desm. sub. alp. p. 155, t. XII, f. 42 — 45) but 

 differs in the dorsal spine being deeidedly hooked. (Query-are not Delp's long. & lat. 

 reversed in the measurenient given? Cfr his f. 42). 

 9S. S. Nathorstii, n. sp. S. subuiagnum, fere 1 l / 2 -\Ao latius quam longum; seinicellulis 

 cuneatis, dorso troncatis, (a fronte) 6 — 7-crenatis crenae latere unigi'anulifera\ proini- 

 nentiis magnis erectis emarginato-apiculätis tribus (quoque processu inter aculeos duos 

 crassos et post tefgum aeuleum breviorem etiara erassnm) apud angulos ornatis; ventre 

 basi inflatis supra 3-sinuatis, inflatione basa Ii summatim 3 — 6 mucronibus parvis pra^- 

 ditå; angulis 3, processubus validis rectis horizontalibus serratb-déntatis apicibus tri- 

 fidis afmatis; sinn aperto, euneato, brevi. A vertice visum triangulare, lateribus eon- 

 cavis; centro verrncis conicis triangulatim positis ornatum. 



Long. 46—58, lat. 60—72, lat. isth. 12—14. long. proc. dorsal. 5—6 ju. T. 

 XVI, f. 8. 



Name in honour of Dr. A. (t. Natiiokst, a distinguished Swedish botanist. This 

 plant appcars to mc to be quite distinct, yet bearing considerable reseml)lance to its 

 congencrs ,S. sebaldi fi ornatutn Nordst. (Norges Desm. p. 34, t. I, f. 15) and >S'. 

 pseudösebaldi, \\ ille, I. c. ut snpra, from which it differs in the spines, and in the 

 elevated and crenate dorsal region. 

 99. S. apienliferum, n. sp. S. submagnnm, quinta parte latius quam longum; semicellnhe 

 cuneatse, dorso truncätae verrucoso-pinnata' emargihata?; angnlos versus prominentiis mag- 

 nis 3 erectis truncatis apice spinulam nnicam ferentibus ornata 1 ; ventre tumida?, tunioii- 

 bus variis extensis qimarunajque forma valde differt (i. e. rotnndata, angnlata, plus minus 

 apiculata — brcviter dicta, >ventre polymorpha' ); angulis 3, radiis crassis rectis hori- 

 /.onlalibus serrate striato-dentatis apice 3 — 4 aculeatis productis; sinn brevi, aperto. 

 A vertice visum triangulare, lateribus incavatis; dorsali parte medio hevi, margincm 

 \crsns pinnis triangnlatini dispositis. 



Long. 55— <I3, lat. 70—75, lat. isth. 12—15, long. proc. dors. 5—7 ,«. T. 

 XVI, f. 7. 



F. minor. Long. 33—40, lat. 44 -49, lat. isth. 10—12, long. proc. dors. 3—4 

 ii, see Waelich Mscr. No. 258 f. 2, 4; 235. 



Searsole; (J. C \A'. 



