I 



117 ~ 



1. Selaginella rapes Iris Spi . 



b) Tetrasticluv (fefylen). 



B. Dichotomy A. Br. Fol. tctraslicha, dimurplia, bifariain 



expansa. 



a) Continues. Caulis contiimus, radices posticus. 



a) Tetragonostachym. Bracteae bomomorphae vel sub- 



homomorphse, spicae tetragons. 



Repcntes. Surculi prostrali, undique radicantes. 



2. S. microphylla Spr. 



3. S. cavifolia A. Br. Surculi tcnclli, repcntes, humo 

 adpressi, undique radiculosi, allernatim ramulosi, ramulis bre- 

 vibus simplicibus vel pauci divisis, nonnullis clongatis sureulo 

 primario simiiibus. Caulis tenuissimus, a dorso subcomprcssus, 

 obscure letragonus , pleurofropus , antice subsulcatus. Folia 

 pallide viridia, diaphana, subtus albonitentia, undique dimorpha, 

 pauiulum disfantia vel subcontigua, versus apices ramulorum 

 imbricata: laleralia postica, sub angulo fere recto paleulia, late 

 ovata vel suborbiculata, obtusiuscula , basi utrinque rotunda!; 

 superiore magis dilatata caulem oblegcntia, marginc remotius- 

 cule dcnticulala , supra obtuse carinata et marginibus elcvalis 

 concava. Folia intermedia duplo minora, subdivergentia, recta 

 vel pauiulum introrsum curvata, suboblique ovafa vel oblonga, 

 basi cxteriore deorsum producta, breviter acuminata, dentieu- 

 Jata, inde a basi carinata! Spicce ramulos breviores (crminan- 

 les, ramulorum piano latiores , breves, a dorso subcomprcssae. 

 Bracleae subhomomorphae, postica? paulo majorcs et paJlidiores, 

 omnes e basi gibba ovala, brevissime acuminata*, denliculata, 

 obtuse carinatse; maerosporsc 1/3 mm. vel paulo ultra crassa, 

 tuberculis irregiilaribtls minutissimis et conferlissimis asperse, 

 lulea, vertice aurantinea. IVIicrospora rubra*, elcvato-rclini- 

 lata (?). Salto de Tequendama (Triana); Boqueron, Bogota, 



altit. 2700 metr. 



4. S. trvneata A. Br., Irid. sem. h. Berol., app., p. 15; 

 Ann sc. not., ic scrie ; t. XIII. p. 65, in adnot. ad S. Breynii. 

 Surculi solo arclc adpressi, radicufis teneris afflxi, laxe ramosi, 

 ramis credo-, inferioribus subborizonlalitcr palrntibus, paucira- 

 mulosis. Caulis a dorso eompressus, facie bisulcatus medio et 

 margine carinatus, dorso convexus et (siceiiate) leviter exara- 

 tus. Folia undique dimorpha et dense conferta , subconligua, 

 versus apicem surculorum imbricata, atroviridia, subtus sub- 

 aureo-nitentia; laleralia postica, rectangule patentia , planum 

 horizontale vel supra concaviusculum 8-tO mm. latum formantia, 

 lineari-oblonga, antice latiora , Iruncato-rotundala, oblusissima, 

 margine anleriore infra medium denticnlis longioribuS instructa, 

 caeterum minutissime serrulala, margine posieriore basi ciliis 



