COLLECTED IN DUTCH NEW GUINEA. 39 



ARarKOCALTMNA DENTICULATA, Ricll., sp. nOV. 



Folia alterna, tenuiter coriacea, elliptico-ovata, cuspidata, acuta, basi obtusa, 

 marginibus incrassatis, dentibus aculeiformibus, 13 cm. longa, 5 cm. lata, nervis 

 10 paribus subtus eleyatis in dentes excurrentibus, aciculis minutis iu utraque 

 facie, patiolis canaliculatis 6 mm. longis. Cyiiue trichotomte, asillares et terminales, 

 liirtiB, 4-0 cm. longse, patentes. Bractece angustoe, liaeares, lanceolatse, 2 mm. 

 longse, liirtaj, pedicellis 4 mm. birtis. Calyx obovoideiis, 5-lobatus, 3 mm. longus, 

 hirtus, lobis lanceolatis sequilongis acutis. Petala crassa, lanceolata, triangularia, 

 acuta, longiora, pilis albis iu medio obsita. Stamina 5, breviora, lilamentis brevibus 

 exti"a discum ortis. Anthercje o\Aon<^\:e, obtusse. Stylus pubescens, staminibus altior, 

 stigmate obcouico apice obscure lobato. Discus anuulatus, pilis albis ad basin 

 styli obsitus. Ocai^imn inlerum, 5-loculare, ovulis plurimis. 



Camp VI b, 3900 ft. 



The branches of this plant are slightly flexuous. The calyx and branches are covered 

 with flat triangular yellowish trichomes like those of species of Melastoma. 



.y ARGi'ROCALTMXA FLEXUOSA, Ptidl, sp. nOV. 



CaiiUs lignosus, flexuosus. Folia alterna, ovata, acuminata, acuta, margine 

 deuticulata, coriacea, superne in sicca virescentia, subtus cinnamomea, undique 

 trichomatibus parvis acutis dissitis scabrida, 10 cm. longa, 4"5 cm. lata, petiolis 

 5 mm. longis. Cymce quam folia breviores, hirtye, di- vel trichotomae, 4 cm. longge, 

 3"5 cm. latss. Bractece lineares, acutce. Bedlcelli 2 mm. longi, liirti. Flores 

 parvi, 5 mm. lati. Calyx obconica, parva, lobis 5 ovatis lanceolatis acutis latis 

 hirtis, apicibus recurvis. Fetala 5, lanceolaia, carnosa, acuta, extus pubescentia. 

 Stamina 5, filamentis crassis. Discus obscure lobatus, rotundatus. Stylus crassus, 

 stigmate capitato. 



Camp VI b, 3900 ft. 



Distiuguished from A. arhorea, Sclium., by its flowers being pcutamcrous and the 

 cymes much shorter. Tlie disc has curious depressions in a circle on its surlacc. 



Erora A. denticulata, Eidl., it is distinguished by its much smaller obconic, not 

 ol)ovoid calyx-tube, and its larger sepals. 



I, Argtrocalymna MONTANA, Ridl., sp. nov. 



Frutex densifolius, ramis copiose leuticcllatis. Folia congesta, coriacea, rigida, 

 ellipticii, oblouga, basibus latis, apicibus rotundatis, appresse deuticulata, 2'5-5 cm. 

 longa, l'5-2 cm. lata, costa superne canaliculata, nervis 5 paribus, petiolis brevibus, 

 crassis 2 mm. longis. Cymce breves, densse, 2"5 cm. longse, 3 cm. latte, dense hirtae. 

 Fedicelli breves, hirti. Calyx brevis, latus, semiglobosus, hirtus, lobis ovatis 5. 

 Petala 5, lanceolata, intus et extus hirta, fasciculo pilorum alborum in dimidio 

 ornata. Stamina 5, glabra, filamentis gracilibus longiusculis, antheris brevibus 

 ovoideis ellipticis. Stylus ad basin conicus, validus, hirtus. Stigma majusculum, 

 capitatum. 

 Camp XIII, 10,500 ft. 



