De Plantis Toxicariis e Mundo Novo Tropicale 
Commentationes XIII. Notes on Poisonous or 
Medicinal Malpighiaceous Species of the Amazon 
By RICHARD EVANS SCHULTES ........- +e ee eeeees 121 
NUMBER 7 (December 12, 1975) 
Studies in the Genus Oncidium. I 
DSU Fe SEAGY. tavuep su iaveeeseereeke napa ee 133 
NuMBER 8 (April 9, 1976) 
Plantae Colombianae XIX. E Partibus Amazonicis 
Witotorum Plantae Fructuariae Sativae Novae 
By RICHARD EVANS SCHULTES «2. ...00. 0008s eeees 193 
Pachytene Chromosome Morphology and 
Its Bearing on Interspecific and Intergeneric 
Relationships of Coix 
By J. VENKATESWARLU, R.S.K. CHAGANTI AND 
PANUCANTI NN. RAG: beeee se iisdeeias ees be esees 205 
New Chichuahuan Umbelliferae 
By LINCOLN CONSTANCE AND ROBERT A. BYE, JR... 229 
Chromosome Numbers in Chihuahuan Umbelliferae 
By LINCOLN CONSTANCE, TSAN [ANG CHUANG AND 
ROPER T Ba PI, ga sc chara ed pee yes Chee Ses 24] 
NuMBER 9 (June 30, 1976) 
The Genus Oeceoclades Lindl. 
By LESLIE A. GARAY AND PETER TAYLOR ........- 249 
NuMBER LO (November 30, 1976) 
Manicaria saccifera and Its Cultural Significance 
Among the Warao Indians of Venezuela 
By JOHANNES WILBERT sxi 544s ccee Ses sqm wees 2795 
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