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ME M OIKS OF THE NEW YORK BOTANICAL GARDEN 



[vol. 10 



homonym, C. coriacea (Naud.) Cogn. (1888), in identifications until the best 

 generic disposition can be found; the name is antedated by C. coriacea Naud. 

 (1852) which is Ossaca coriacea (Naud.) Tr. From the minute morphologic 

 similarities, I also feel that Leandra linearis Gleas. (known only in fruit) is a 

 close relative of the two anomalous species of Clidemia and should share their 

 eventual generic fate. 



RUBIACEAE 23 



Calycophyllum DC. Prod. 4: 367. 1830. 



In recent years various collections have been made in Venezuela and British 

 Guiana of trees having smooth, shiny, exfoliating, coppery-red or reddish bark. 

 These have been found to belong to the genus Calycophyllum. All of them, thus 

 far collected, are related to C. obovatum (Ducke) Ducke and C. acreanum Ducke, 

 but differ in several respects from these species, as indicated by the following key : 



Key to the Species of the C. obovatum-acreanum group 



Hypanthium, calyx, or capsules glabrous externally; foliar appendage of calyx 



absent. C. acreanum. 



Hypanthium, calyx, or capsules puberulent externally; foliar appendage of calyx 

 large, showy, petaloid. 



2. Leaves minutely puberulent beneath ; anthers pilosulous throughout. C. intonsum. 



2. Leaves glabrous beneath ; anthers glabrous, or, if pubescent, the pubescence 

 confined to the apex or connective. 

 3. Apex of leaf acute to acutish. C. venezuelense. 



3. Apex of leaf rounded or very obtuse. 



4. Anther and connective glabrous; corolla hirtellous-pilosulous without, the 

 hairs obviously spreading; bracts of inflorescence at anthesis minute, 

 nearly obsolete, deltoid, 0.5-1 mm long. C. obovatum. 



4. Anther shortly pubescent at apex, connective shortly p'ubescent; corolla 

 glabrous or nearly so without; bracts of inflorescence at anthesis man- 

 ifest, trifid, or tripartite, or simple, triangular-lanceolate to oblanceolate, 

 5--12 mm long. C. spectahile. 



Calycophyllum intonsum Steyermark, sp. nov. Fig. 68. 



Arbor 20 m alta, ramulis teretibus superne ad nodos complanatis novellis 

 puberulentibus; stipulis in anthesi non visis; foliis petiolatis, petiolis 1.3-5 cm 

 longis puberulentibus; laminis coriaceis subtus fere concoloribus late elliptico- 

 ovatis*vel elliptico-obovatis subacutis vel obtuse acutis 20-27 cm longis 11—15 cm 

 latis supra glabris subtus puberulentibus, nervis later alibus utroque latere 11-14 

 prominentibus ante marginem evanescentibus venulis supra creberrimis fere 

 sublineolato-reticulatis ; inflorescentiis terminalibus speciosis, rhachi ramulisque 

 tomentellis angulatis compressis 20-30 cm longis 20-27 cm latis, bracteis trifidis 

 vel trilobatis 2-6 mm longis 2 mm latis, lobis lanceolatis vel linearibus lateralibus 

 brevibus acuminatis extus tomentellis ciliolatis ; floribus breviter pedicellatis, 

 calycis tubo hypanthioque obconico-subcylindrico 2 mm longo apice 2 mm lato 

 extus cano-tomentello, calycis lobis 4 deltoideis obtusis 0.5 mm longis basi 1 mm 

 latis intus glabris extus dense minuteque tomentello; calycis lacinia foliacea 

 pallide viridi-lutea (teste Tillett) in laminam spatulato-obovatam vel late ovali- 

 oblongam vel ovali-ovatam 2.5-4 cm longam 1—3.2 cm latam utrinque tomentellam 

 dilatati ungui 1-2 cm longo ; corolla rubra apice alba (teste Tillett) late campanu- 



23 By Julian A. Steyermark. 



