274 



^ O. Reinvcardtii Zuccar. 



O. caule subsimplici, foliis paripinnalis multijugis, foliolis li- 

 near! -oblongis acutiusculis , pedunculis apice incrassatis bracteatis 

 multifloris , pedicellis bracteas calyccmque capsulam siibaequantem 

 plus quam duplo supcrantibus, ovarii lüculis trispermis. 



Todda Faddi Bhcede hört, malab. IX. p. 33- tab. ig. — Jlerba 

 senliens Garcin. Act. angl. 1730. fg. 2. — O. sensitiva 

 Zuccar. Monogr. Oxal. americ. tab. y. B. ( qiwad iconem ). 



Radix annua, adscendens, iibrosa, fibris filiformibus flexuosis 

 tenuissime fiLrillosis cinereo-fuscescenlibus vestita. Caulis simplex, 

 adscendens, basi lignesccns, teres, apicem versus subangulatus vcl 

 compressiusculus, pilis brevibus adpressis obsitus, fuscesccns, 3 — 8 

 pollices altus, crasitie vix pennae corvinae. f^olia in apice caulis 

 20 vel plura in orben» horizonlaliter expansa, paripinnata , 15 — 20- 

 juga ; foliola opposita , subsessilia , superiora crescendo majora , sub- 

 inaequilatera, inlegerrintia, utrinque parce pubescentia, nervo medio 

 venisque approximatis parum flexuosis subparallelis in ipso margine 

 combinatis percursa, ima minima vix lineam longa, e basi subcordata 

 ovata vel subdeltoidea , superiora sensim majora, e basi truncata vel 

 subrotundata lineari-oblonga, acutiuscula, 4 — 6 lineas longa, 2 cir- 

 citer lata; summa e basi dimidiato-cordata obovata acutiuscula vel 

 obtusa, reliquis latiora; petioli horizonlaliter patentes, pubescentes, 

 basi nuda subincrassali, articulati, scmiterctes, supra canaliculati, 

 sursum subtrigoni, apice inter summa foliola in mucronem brevem 

 excurrentes, Ij — 3 poll. longi. Slipidae distinctae nuUae. Pedun- 

 culi 6 — 8 vel plures inter folia provenientes , erecti, stricti, teretes 

 vel compressiusculi, pilis patentibus brevibus dense pubescentes, um- 

 belliferi. Flores 6 — 10 vel plures in quovis pedunculo e capitulo 

 bractearum provenientes ; bracteae plurimae , densissimc imbricalae, 

 lineari-lanceolatae, acutac , ciliato-hirtae, membranaceae , vix lineam 

 longae; pediceUi braoteis multoties longiores, teretes, pubescentes. 



