HIRAEA. 



auctore Adr. de Jussieu. 331 



breviorem angustato. Stamina 10, omnia ferlilia, filamenta subinaequalia, ex di- 

 midia parle in tubum connata, connectivum oblongum incumbens, loculis pilosis 

 paullo brevius. Ovarium subglobosum setosum, sligmata 3 linearia truncata 

 uequans, carpophylla 3 connexa, dorso cristalo-trigona, ovulum cujusque pendu- 

 lum lycolropum, parte ascendenle obtusa. — Crescit in Brasilia. 



30. H. PSILOPHYLLA Adr. Juss. in St. Hil. Flor. Brasil. merid. III. 20. — Foliis 

 oblongis lanceolatis vel ovato-lanceolatis glabris scabris lenuibus, longiuscule 

 petiolalis; nmbellis axillaribus, breviter stipitatis quadrifloris; calyce 8-gtandu- 

 loso; petalis pubescentibus luteis; samarae alis tribus (vel 4) subglabris, margi- 

 nalibus dorsali duplo majoribus. 6>^ — Rami flexiles glabri. Folia (poll. 3-4 

 longa, l'/ 2 -2 lata) lanceolala vel ovato-lanceolata integerrima, ad basin glandulis 

 minulissimis marginalibus 1-2 ulrinque nolata glabra, supra lucida scabra, subtus 

 pallidiora reticulato-nervosa tenuia petiolala, peliolo ultra semipollicari, ad basin 

 bisiipulato, slipulis glanduliformibus vix conspicuis. Inllorescenliae in ramulis 

 laleralibus abbrevialis axillares lerminalesque umbelliformes, umbellis quadri- 

 floris, ternalim in corymbum compositis, pedunculi communes breves, floriferi 

 lin. 2 longi, basi unibracteali, bracteis in involucrum verticillalis brevibus lineari- 

 acutis, pediceili duplo longiores, sub flore incrassali, glandula scutelliformi no- 

 tati, basi articulali, bracteolae infra articulum geminae subopposilae ovatae. Ca— 

 lyx quinquepartilus, laciniis erectis, basi exlrorsum biglandulosis , glandula dis- 

 coidea sessili prominente, lineam longis, semielliplicis, exlrorsum hirsutis. Petala 

 calyce triplo longiora , inter ipsius lacinias reflexa inaequalia (quintum caeteris, 

 quae in praefloratione involvit, lalius) unguiculata, limbo suborbiculari, fornicata 

 lacerato-denlata, extrorsum pubescentia lutea. Slamina 10, calyce vix longiora 

 inaequalia (minora petalis minoribus conlermina), filamenta complanata subulata, 

 usque medium inter se coalila, pelalis alterna opposilis paullo longiora, antherae 

 cordatae biloculares, conneclivo dorsali glanduliformi , pollen laeve globulosum, 

 in aqua polyedrum, angulis ampullam emittentibus. Ovaria 3 inter se in unicum 

 Irilobum facie inlerna coalila, exlrorsum convexa et demum trigono-alata hirsula, 

 singula uniovulala, ovulo pendulo vermiformi plicalo. Styli tolidem divergentes 

 hirsuli, singuli sligmate glanduloso terminali. Fructus conflatus e samaris tribus, 

 facie interna angulosa cohaerenlibus sed facile et demum sponle solubilibus, 

 dorso 4-alatis, alis inter se parallelis cristaeformibus membranaceis, parcissime 

 puberulis, laleralibus pollicera longis, semipollicem lalis, mediis duplo saltem 

 brevioribus (altera etiam interdum fere deficit). Semiua nulla suppelebant. — 

 H. platyplera Griseb. Linnaea XIII. 244. — In sylvis juxla Sebaslianopolin, nec 

 non in sepibus prope urbem Rio Pardo in prov. Rio grande de S. Pedro do Sul. 



31. H. SEPTENTRIONALIS Adr. Juss. Archives du Mus. III. 563. — Foliis ovatis, 

 basi et apice saepe aculis glabris, breviter peliolatis; umbellis axillaribus, bre- 

 viler slipitatis quadrifloris; pedicellis cum pedunculo partiali arliculatis; calyce 



8-glanduloso; pelalis pubescentibus ?; fruclu ? 6^ — Rami flexiles, ju- 



niores puberuli, adulti glabrali. Folia ovala (poll. 2-l'/ 2 longa, lin. 15-10 lata), 

 basi nonnumquam, apice semper acuta glabrata (juniora subtus villosa), sublus re- 

 ticulalo-venosa et margine ad basin minule biglandulosa, petiolo lin.3longo bi- 

 stipulata, slipulis brevissimis callosis. Inflorescenliae ad summa folia axillares vel 

 terminales umbelliformes, umbellis simplicibus vel lernalis, stipiti communi brevi 

 imposilis, pedunculis floriferis lin. 2 longis, brevissime basi bractealis et apice bi- 

 bracleolalis cumque pedicello arliculalis. Calyx pubescens, laciniis semielliplicis 

 4 biglandulosis. Pelala lin. 4-5 longa, ungue brevi, limbo suborbiculari lacerato- 

 denlalo, medio extrorsum pubescente, inaequalia. Stamina calyce vix longiora 

 glabra, filamentis inter se in tubum coalilis. Ovaria in unum coalita hirsutum, 

 singula sub pilis dorso tricristala. Styli breves, inferne hirsuli, in sligma glan- 

 dulosum apice incrassati. Fructus non suppelit. — Crescit in Mexico ad Monlerey. 



32. H. BARCLAYANA Rth. Bot. of the voy. of Sulphur. 75. f — Foliis obovatis ob- 

 tusissimis, basi angustatis cordatis, supra glabriusculis, subtus pubescentibus; 



42' 



