1961] 



BOTANY OF THE GUAYANA HIGHLANDS PART IV (2) 



57 



Fig. 41. Pseuderanthe mum maguirei Leonard {Maguire 4' Politi 27941). a, tip of plant, 

 X 0.5; b, bract and bractlets, X 5; c, portion of inflorescence enlarged to show pubescence, 

 X 4; d, section of calyx segment enlarged to show pubescence, X 8 ; e, portion of calyx en- 

 larged still further to show hairs, X 20 ; f , corolla, X 2; g, portion of corolla tube enlarged 

 to show glandular hairs, X 50. 



minute et graciliter pubescentibus ; stamina vix exserta, filamentis 6.5 nun longis, 

 basi minute pilosa, sursum glabris, antheris 2 mm longis, glabris; staminodia 

 0.75 mm longa, subulata; ovarium glabrum; capsulae ignotae; stylus 19 mm 

 Longus, basi minute hirtellus, sursum glaber ; stigma minutum, bilobatum. 



VENEZUELA: Amazonas: Cerro Sipapo (Paraque), vicinity of Base Camp; slender 

 shrub with white flowers; 25 Dec 1948, Bassett Maguire 4' Louis Politi 27941 (type, NY; 

 fragment of type, US). 



Ruellia malaca Leonard, sp. nov. Fig. 42. 



Suffrutex, eaulibus erectis, simplicibus vel ramosis, usque ad 2 m altos, mol- 

 liter tomentosis, canescentibus, subteretibus ; lamina foliorum oblongo-ovatis, 

 usque ad 30 cm longam et 12 cm latam, apiee acuminata, basi angustata, 

 aliquant o firma, integra vel undulata, supra molliter puberula vel subglabra, 

 subtus dense et molliter puberula, pilis plus minusve patulis, reetis vel curvatis, 

 usque ad 0.32 mm longos, eostis et venis (11 vel 12 paribus) aliquanto prominen- 

 tibus ; petioli usque ad 4.5 cm longos, dense tomentosi vel minute puberuli ; 

 paniculae terminales, usque ad 13 cm longas et 10 cm latas, dense et molliter 

 pilosae vel subtomentosae, pilis plus minusve glandulosae; bracteae caducae, 

 oblongae, usque ad 2 cm longas, 4 mm latas, puberulae ; flores caduci ; calycis 

 segmenta submembranacea, lineari-lanceolata, usque ad 3 cm longa, 4 mm lata, 

 acuminata, dense et molliter puberula, costa et venis obscuris ; corolla pubescens, 

 flava. 5 vel 6 cm longa, tubo curvato, basi 8 mm lato, prope os 2 cm lato. limbo 

 obliquo 4 cm lato, lobis rotundatis, 1.5 cm latis ; stamina exserta, usque ad 10 cm 



