SYMBOLAE AD FLORAM ARGENTINAM. 329 



veniac. Chaguar. — O. : Oran . pr. S. Lorenzo; Gr. Chaco, ubi fre- 

 qupiis. 



2136. Chevalliera grandiceps Gr. n. sp. foliis lineari-oblongis cuspi- 

 dato-acuminatis spinaque teiminatis pallide virentibus miiiute squamu- 

 losis glabris: spinulis marginalibus antrorsum incurvis reinotiusciilis ver- 

 sus vaginam elongatam laminae aequilatam evanidis, spica composita in 

 strobilum oblongo-lanceolatum grandem apice attenuatuni niilleflorum 

 coadunata caulem simplicem vaginis obloiigis inermibus apice in cuspidem 

 spiuescenterii attenuatis involutnm teiniinante, bracteis spiculas fulcienti- 

 bus parvis cnspidato-deltoideis fiore imo superatis, spiculis 5 — Sfloris dense 

 congestis : floribus distiohis : bracteolis geminis fioii lateralibus verticaliter 

 basi lata insertis deltoideis mucionatis, calyce Spartito ovario aequilongo : 

 segmentis concavo-subulatis apice spinescentibus corolla parum superatis, 

 petalis epigynis spathulato-liiiearibus supra basin squania profunde bifida 

 plana instructis et staminiferis: staminibus alteniis epigynis, anllieris 

 sagittato-incumbentibus, styli apice trifido: stigmatibus liiiearibus paten- 

 tibus, bacca 3loculari polysperma: seminibus obpyraniidato-oblongis nu- 

 dis. — Bracteolae 2 laterales margine foveae floris dorsuni excipieuti 

 verticaliter adiiatae, bracteolae typicae basilari honiologae, characterem 

 speciei dant eximium. Caulis 4pedalis; spica terminalis 8 — 10" longa, 

 2^/2" lata; folia inferne vaginantia 2 — 3pedalia, \^J2— 1" lata, spinis 

 marginalibus \"' longis, 4 — &'" distantibus, terminali validiori; bracteae 

 6'", bracteolae A'" loiigae et latae; calyx b'", petala ü'" longa, ,,coeru- 

 leo-rosea", squamis oblongis staminibusque \"' a basi unguis distantibus, 

 ungue post authesin persistente; fiiamenta e|)ipelala 3'", epigyna A'" 

 longa, anthera lineari 2'" longa; Stylus b'" longus; bacca subglobosa, 

 b'" diam. — O. : Oran, versus S. Andres, epi])hylica in sylvis virgineis, 



2137. Pitcairnia spathacea Gr. n. sp. foliis rigidis lineari-acumi- 

 natis coiivolutis supra basin remote spinuloso-serrulatani integerrimis supra 

 minute fiirfuraceis , subtus striatis glabrescentibus , racemis spiciformibus 

 remotifloris in paniculam patentem elongatam glabram dispositis, bracteis 

 raembranaceis ovato-subulatis apice cuspidatis pedicello brevi multo lon- 

 gioribus florem dimidium subaequantibus , sepalis ovato-acuminatissimis 



42 



