222 schombukgk's guiana plants. 



I have also male flowers only. The former appears to be 

 allied to the preceding, the flowers are some tetramerous, 

 some pentamerous. His n, 2460 is rather perhaps an Alibertia, 



It appears to me not improbable that Gardeniola^ Cham., 

 and possibly Octavia^ DC, will, when better known, prove 

 to be referrible to Cordiera, and that this genus will be found 

 to have a four or five-celled ovary, with two ovules in each 

 cell, of which either all or a portion only ripen into seeds. 

 Thieleodoxa, Cham., would then differ only in the cells of the 

 ovary being reduced to three. Scepseothamnus gardenioloides, 

 Cham., described as having two cells with one ovule in each 

 cell attached to the dissepiment by its flat face (which is un- 

 usual in the order), must remain doubtful. The two other 

 species of Scepseothamnus, of which the male flowers only are 

 known, may belong to any of the above genera or to Ali- 

 bertia. 



471. Retiniphyllum scabrum, (sp. n.); foliis obovato-oblon- 

 gisvix brevissime acuminatis basi angustatis coriaceis, supra 

 demum nitidis, subtus scabro-pubescentibus, pedunculis termi- 

 nalibus brevibus bifloris. — Frutex ramulis piiis rigidis hirtus. 

 Folia ramulorum sterilium 3-4-pollicaria, supra saepe proeser- 

 tim versus marginem pilis minutis sparsis scabrida, cseterum 

 nitida, subtus pilis rigidis brevibus appressis scabra ; stipulse 

 vaginantes, petiolo subsequilongJK, acuminatse, utrinque apice 

 bifidse, dense hirtai. In ramulo florifero stipulse (an delapsse?) 

 ad vaginam brevem truncatam reductae; folia breviora quam 

 in ramo sterili, omnia supra Isevia nitida. Pedunculi gemini, 

 rigidi, 2-3-lin. longi. Flores in quoque pedunculo gemini, 

 subsessiles. Bracteolse breves cupulatae, dentata?. Calyx 

 oblongus, 4-5-lin. longus, basi attenuatus, limbo tubuloso 

 breviter 5-dentato. Corolla coccinea, extus pubescens ; limbi 

 lacinise oblonga?, 5-lin. longa^; tubus pollicaris, intus supra 

 annuium pilorum pubescens, infra glaber. Stamina fauci 

 inserta, exserta. Filamenta laciniis corollae parum breviora. 

 Anthers^ ovattt, connectivo in acumen producto. Ovarium 

 disco coronatum 5-ioculare, loculis 2-ovulatis. Stylus pubes- 

 cens, stigmate incrassato indiviso. — Axillai foliorum, pedun- 



