124 



6. Selaginella uncinata Spring monog. II. 109. 



Supra caesio-violascens, iridescens; caulis continuus, decumbens, ramos pinnatos, ramulis dichotomis et radices postice refractas ex furcaturis 

 emittens, subpentagonus, postice convexus, antice et ad latera sulcis, ex insertione foliorum decurrentibus, exaratus ; folia cathedra, integerriraa, tenuissime 

 marginata, difformia; lateraliain rarais primariis rectangule, in secimdariis oblique patentia, ovata, basi interiore producta dorsum caulis subtegentia; 

 intermedia lateralibus triplo minora, adpressa, convergentia, oblonga, acuta, apice subraucronato recurva. Spicae ? 



S. caesia Hort. 



China. 



6 b. Selaginella uncinata vor. arborea. 



Supra viridi-fusca, subiridescens ; caulis scandens, 4—8' longus, ramos primarios, pyramidatos, horizontaliter patentes, ramulis pinnatis vel dicho- 

 tomis abrupte innovantibus, et ex furcaturis radices antice et postice refractas emittens; folia in caule primario remota, subaequalia , ovata, obtusa, in 

 ramulis biformia ; lateralia ovato-oblonga, obtusa, basi superiore in auriculam, cauli adpressam, producta; intermedia adpressa, convergentia, oblonga, 

 acuta, basi exteriore in auricnlam acutam producta; spicae terminales; bracteae densae, ovatae, acutae, carinatae, conformes; infimae et superiores spo- 

 rangia, sporis majoribus repleta, gereutes; membrana externa sporarum minorum rete cellulosum, tenerum, aemulans, majorum appendicibus lamellifor- 

 mibus, maxiinis, hinc inde anastomosantibus, instructa. 



S. .arborea Hort. 



Patria V 



Aiimerk. Die Uebergänge von der gewöhnlichen sterilen Form von S. uncinata zu dieser var. arborea sind mir nicht bekannt; ja manche der erwähnten 

 Charaktere machen unwahrscheinlich, dass beide einer Art entsprossen seien; da jedoch die vermeintliche Grundform nur im sterilen Zustande vorliegt, wagte ich nicht 

 eine Trennung vorzunehmen. 



7. Selaginella Martensii Spring monog. IL 129. 



Caulis repens ; rami primarii sparsi, erecti, continui, pinnatim ramos secundarios verticales , ramulis dichotomis et ex furcaturis radices, postice 

 refractas, emittentes, subtetragoni, dorso convexi; folia cathedra, nervo valido instructa, biformia ; lateralia oblique patentia, ebasi latiore inaequali, supe- 

 riore productiore, dorsum caulis tegente, oblique oblonga, obtusa, margine ciliata ; folia intermedia basi exteriore in auriculam subcurvatam producta, 

 öbovata, adpressa, divergentia, aristata, margine ciliata; spicae laterales vel terminales, singulac vel geminae; bracteae conformes, ovatae, acuminatae, 

 carinatae; infimae steriles; proximae et superiores sporangia, sporis minoribus, intermediae, 4—5, sporangia, sporis majoribus repleta, gereutes. Mem- 

 brana externa sporarum minorum tenuiter granulata, majorum rete cellulosum, irreguläre, tenuiter exsculptum, aemulans. 



S. dichrous, flexuosa, decomposita, sulcata Hort. 

 Variat: ß. Caule subflaccido et flexuoso (S. serpens Hort.) et 



y. Caule firmiere, rigidiore, ex dichotomia radices, antice simulque postice refractas, emittente. (S. Hügelii Hort.) 



Mexico. 



8. Selaginella maequalifolia Spring monog. II. 148. 



Caulis repens; rami sparsi, erecti, continui, subpyramidato-ramosi, inferne radices postice refractas emittentes ; rami.secundarii ramulis dichotomis, 

 flabellatis, instructi, plerumque arrhizi, subpentagoni, sulcis ab insertione foliorum decurrentibus exarati; folia cathedra, in ramis primariis subremota, in 

 secimdariis approximata, integerrima, glabra, difformia; lateralia oblique patentia, e basi cordata, superiore in auriculam subuncinatam, cauli adpressam, 

 producta, oblique ovato-oblonga, acuta; intermedia adpressa, subconvergentia, lateralibus duplo minora, c basi inaequali, cordata, exteriore in auriculam 

 uncinatam, obtusam, producta, nonnunquam et interiore, brevissime auriculata, e basi paullulum attenuata, ob o vata - oblonga, acuminata, mucronata, apice 

 recurva. Spicae terminales ; bracteae conformes, ovatae, longe acuminatae, carinatae; inferiores et superiores sporangia, sporis minoribus; intermediae, 

 4 — 8, sporangia, sporis majoribus repleta, gerentes; membrana externa sporarum minorum rete cellulosum, tenuiter exsculptnm, aemulans; majorum 

 verrucis cylindricis, majoribus, instructa. 



India Orient. Java. 



9. Selaginella erytliropus Spring monog. IL 155. 



Subtus nitida, pallescenti-viridis ; caulis repens; rami continui, sparsi, erecti, inferne punicei, pyramidato-ramosi et abrupte innovantes, ramis, 

 subaequaliter pinnatis, instructi, arrhizi vel raro radicem, postice refractam, exserentes, subtetragoni, sulcis levissimis, ex insertione foliorum decurrentibus, 

 exarati; folia synedra, oblique cordata, acuminata, nervo valido instructa, margine inferiore ciliata, superiore serrulata; inferiora subremota, subaequalia; 

 superiora approximata, difformia; lateralia dorsum caulis tegentia, erecta vel oblique erecta, e basi inaequali, exteriore in auriculam producta, oblique 

 cordata, apice falcato, acuminata ; intermedia lateralibus duplo minora; adpressa, convergentia, basi externa in auriculam brevem, acutam, producta, oblique 

 ovata, mucronata; spicae terminales; bracteae conformes, tetrastichae, ovatae, acuminatae, carinatae; infimae et superiores sporangia, sporis minoribus, 

 intermediae sporangia, sporis majoribus, repleta, gerentes ; membrana externa sporarum minorum tenuissime granulata, majorum rete cellulosum, macuhs 

 majoribus, elevatis, constitutum, aemulans. 



Brasilia. Chili. America centralis. 



10. Selaginella viticulosa Kl. Linn. 18. 524. Spring monog, IL 186. 



Subtus argenteo-nitens; caulis repens ; rami continui, sparsi, virides, erecti, pyramidato-ramosi, una cum ramulis, pinnatim dispositis, repetito- 

 dichotomis abrupte innovantes, hinc inde radices postice refractas emittentes, tetragoni, dorso convexi, antice sulcati, et postice sulcis levissimis, ex inser- 

 tione foliorum decurrentibus, exarati ; folia synedra in ramis primariis ; inferiora adpressa, subapproximata, subconformia ; superiora et in ramis secimdariis 

 approximata, difformia; lateralia oblique patentia, e basi cordata, interiore producta et dorsum caulis tegente, exteriore excisa , oblique ovata, oblonga, 

 acuta margine basali longe, versus apicem subtiliter ciliata; intermedia triplo minora, adpressa, subconvergentia, oblique ovato-lanceolata, mucronata, 

 margine breviter ciliata. Spicae terminales; bracteae tetrastichae, conformes, densae, ovatae, acuminatae, carinatae, margme tenuissime serrulatae; 

 infimae et superiores sporangia, sporis minoribus, intermediae, 4-8, sporangia, sporis majoribus repleta, gerentes. Membrana externa sporarum 

 minorum tenuissime granulata; majorum rete cellulosum, maculis majoribus, paullulum elevatis, constitutum, aemulans. 



Columbia. 



11. Selaqinella Voqelii. Spring monog. IL 170. et in herb. Kunzeano. 



Caulis repens; rami sparsi, erecti, arrhizi, sordide straminei, pubescentes, elongati, rigiduli; rami secundarii subpyramidati ; inferiores subhori- 

 zontaliter patentes, ramulis pinnatis vel dichotomis instructi, subtereti-tetragoni ; folia cathedra, in ramis primariis remota, adpressa, erecta, subaequalia, 



