APPLICATION OF PHYTOSOCIOLOGICAL TECHNIQUES 



323 



Table 24. Composition and structtire of the natural forest of the Horto Botmiico 

 do Instituto Agronomico do Sul, Pelotas, Rio Grande do Snl. Species are arranged 

 by strata, life-form,'^ and leaf-size classes}^ with a distinction between those more 

 and those less important. Basic data by Dr. Jose da Costa Sacco, with the assistance 



of the authors (Cont.) 



Less important species 



Paspalum plicatum (Michx.) Pers. Gramineae 



Vernonia polyanthes Less. Compositae 



Piptochaetium lasianthiim Griseb. Gramineae 



Stipa melanosperma J. Presl. Gramineae 



Borreria centranthoides Cham. & Schlecht. Rubiaceae . . 



Geranium albicans St. Hil. Geraniaceae 



Briza subaristata Lam. Gramineae 



Bromus uruguayensis Arech. Gramineae 



Bromus unioloides HBK. Gramineae 



Verbena dissecta Willd. Verbenaceae 



Iresine celosioides L. Amaranthaceae 



Rivina humilis L. Phytolaccacae 



Acanthospermum australe (Loefl.) 0. Ktz. Compositae . , 



Polycarpon tetraphyllum (L.) L. Caryophyllaceae 



Jussieua fruticosa DC. Onagraceae 



F. Lianas, listed according to the highest stratum attained, 

 notation as above 



A stratum 



Passiflora suberosa L. Passifloraceae 



Passiflora elegans Mast. Passifloraceae 



Bignonia unguis-cati L. Bignoniaceae 



B stratum 

 Pithecoctenium echinatum (Aubl.) K. Sch. Bignoniaceae 

 Smilax campestris Griseb. LiUaceae 



C stratum 



Cissampelos pareira L. Menispermaceae 



Clematis bonariensis Juss. Ranunculaceae 



Canavalia bonariensis Lindl. Leguminosae 



Phaseolus adenanthus G.F.W. Mey. Leguminosae 



Orthosia aphylla (Veil.) Malme Asclepiadaceae 



D stratum 



Passiflora caerulea L. Passifloraceae 



Janusia guaranitica (St. Hil.) A. Juss. Malpighiaceae .... 



Urvillea uniloba Radlk. Sapindaceae 



Muehlenbeckia sagittifolia Meissn. Polygonaceae 



Chymocarpus pentaphyllus (Lam.) D. Don Tropaeolaceae 

 Solanum boerraviaefolium Sendt. Solanaceae 



