32 A. GRISERACH, 



primariis constituto sec. analysin cl. Falkenberg a tninco Phytolaccae, 

 Nyctaginearum et Meserabrianthemi Achatocarpum difFerre, sed vulgarem 

 structuram, cum affinitatibus haud consonam, idem botanicus quoque in 

 Seguiera et Rivina se observasse affirmavit. 



142. A. spinulosus Gr. n. sp. sarmentosus , spinis brevibus ar- 

 matus , foliis chartaceis glabratis (junioribus pubeiulis) elliptico-oblongis 

 V. ovali-rotundatis acutiusculis v. obtusis in petiolum sensim attenuatis, 

 racemis axillaribus simpliciusculis : üoribus utriusque sexus remotiusculis, 

 bracteolis minutis subrotundis margine membranaceis, staminibus 15 — 20 

 circa rudimentum ovarii obsoletum insertis, testa dura rugosa. — A. 

 nigricans Trian. (Ann. sc. nat. IV. 9. p. 46.), species novogranatensis, 

 difFert „statura arborea, foliis acuminatis , racemis compositis et bracteis 

 mucroniformibus". Rami rigentes v. flexicauli-ascendentes, foliosi (inter- 

 nodiis plerisque poUice brevioribus) , spinis axillaribus v. supra geramam 

 axillarem sitis subuliformibus, plerisque 3'" longis; folia 2 — 1" longa, 

 8 — 10'" lata, sicca nigricantia, mediano subtus prominulo, venis Omnibus 

 laxe reticulatis nee prominulis, petiolo 2'" fere longo, nodo tenui; racemi 

 l" Cl-i") — 2" longi, pedicellis 1 ^2 — 1"' longis, solitarii v. geminati; se- 

 pala 1 — 1^/2'" longa, ovalia v. ovali-rotundata, concava, önervia, sicca ni- 

 gricantia , o* stamina includentia , bracteolis minutis obtusiusculis ; sta- 

 mina aequalia, anthera grandi utrinque subemarginata; ovarium in ? mi- 

 nutum, angulato-trapezoideum ; bacca succosa, 3'" diam., sicca nigri- 

 cans. — T. : in pampa pr. Tusca. 



143. A. praecox Gr. n. sp. fruticosus, erectus, inermis, foliis 

 serotinis glabris ellipticis acutis in petiolum attenuatis, racemis simplicibus, 

 ? praecocibus 5 — 6floris solitariis v. fasciculatis, o* coaetaneis 7 — 2floris, 

 bracteolis minutis ovatis acutis margine membranaceis, staminibus 10 — 15 

 centralibus, testa laevi coriacea. — Frutex 6 — 12pedalis, ramis paten- 

 tibus , cortice cinereo; folia (1 — 2" longa, 6'" lata), petiolo 2'" longo, 

 nodo tenui; racemi o» recurvi, 6'" longi, pedicellis filiformibus 1^/2'" 

 longis, bracteolis ^J2"' longis, $ longiores, remotiflori; sepala ovali-rotun- 

 data, sicca nigricantia, \'" longa, stamina subaequantia; pedicelli ? vix 

 1'" longi; bacca ellipsoidea, 3'" longa, calycem plus duplo excedens. 



