B. A. Krukoff's 4th Expedition to Brazilian Amazonia Third list of determinations (Feb., 1935) (The initial following names indicates as follows: PGS. det. P. C. Standley REF. det. R. E. Fries GVM. det. O. V. Morton All others det. by A. C. Smith, unless otherwise noted). Nos. 3028 to 3081 were collected by R. Froes. 3028. Ipomoea crassicaulis (Benth.) Robins. 3030. Echinodorus subulatus (Mart.) Griseb. 3031. Tocoyena brasiliensis Schum. (PGS) 3032. Zanthoxylum rhoifolium Lam. 3033. Ipomoea digitata L. 3037. Galipea trifoliata Aubl. 3051. Melia azedarach L. 3053. Ucriana longifolia Spreng. (PGS) Nos. 4500 seq. were collected by B. A. Krukoff. 4509. Calonyction aculeatum (L.) House 4511. Solanum pulchrum Dunal? (GVM) 4520. Dichorisandra hexandra (Aubl.) Ktze. 4521. Psychotria marginata Sw. 4524. Calathea comosa (L.f.) Schum. 4535. Solanum pensile Sendtn (GVM) 4538. Allophylus amazonicus (Mart.) Radlk. 4539. Elaterium amazonicum Mart. 4546. Carludovica trigona R. & P. 4549. Guarea alborosea Rusby 4551. Calathea peruviana Koern? 4555. Conomorpha utiarityti Hoehne 4556. Guarea 4562. Paullinia capreolata (Aubl.) Radlk. 4564. Bommera sabiceoides Schum. (PGS) 4567. Costus 4569. Solanum campaniforme R. & S. 4571. Chamiissa Maximiliani Mart. (PGS) 4574. Chamiissa macrocarpa HBK. (PGS) 4581. Neea macrophylla P. & E. (PGS) 4582. Ipomoea 4586. Cayaponia 4587. Solanum 4593. Coussarea longiflora Muell. Arg. (PGS) 4594. Stylogyne cauliflora (Mart. & Miq.) Mez 4601. Allophylus punctatus (P. & E.) Radlk. 4608. Guarea trichillioides L. 4612. Pfaffia paniculata (Spreng.) Kuntze (PGS) 4613. Eucharis Ulei Kraenzl. 4615. Alibertia edulis (L. Rich.) A. Rich? (PGS) 4619. Strychnos Poeppigii Prog. (M Y. Sandwith) 4622. Ridges of. amazonica Muell. Arg. (PGS) 4624. Protium carnosum A. C. Smith (TYPE COLL.)