- 328 - 



DOCTERS VAN Leeuwen No. 3969, 3970. 

 Jacobson No. 2793 

 Leefmaks No. 4. 



The species belongs to the Section Ctiondrophyllum in the widened 

 sensé given to it by Clarke in Flora British India IV, 110. It is certainly 

 allied to G. rcciirvata Ciarke but differs by its erect capsules and pale 

 corolla. 



IX. MAPANIA HEYNEANA Backer, nov. spec. 



Mapania caule robusto elato, foliis magnis longissime acuminatis r/2 — 

 2 M longis 30—35 niAA latls corymbo dense albido-pulverulento 15 — 16 cM 

 lont^o 18 - 20 cM lato, a basi ramoso, ramis secundi vel tertii ordinis apice 1 —8 

 splcas confertas gerentibus, spicis oblongis 71/2—9 mM longis 3— S'/a mM latis 

 multispiculatis squamis in singulis spiculis 6, inferloribus bracteam 

 aequantibus vel subsuperantibus. 



D e s c r. fus. Corynibus 15 — 16 cMlongus 18 — 20 cM latus e spicis 150-- 

 250compositns a basi ramosus, rami secundi vel tertii ordinis apice spicas 

 i — 8 confertas gerentes. Spicae (pseudo— spiculae) 7'/2— 9 mM longae, 3-3V2 

 mM latae multispiculatae. inferiores pedicellis 4—10 mM longis suîfultae 

 superiores brevius pedicellatae sumnia sessilis. Glumae oblongae vel oblongo- 

 subobovatae apice rotundatae enerviae glabrae striis brevibus rubris no- 

 tatae 2^/4—3^/4 mM longae marginibus scariosis sublaceris. Flores singuli 

 6-squamati, squamae per paria oppositae 2 inferiores naviculares + 3 mM 

 longae glumam aequantes vel subsuperantes dorso pubescentes, utraque 

 stamen unum amplectente, squamae 4 superiores glabrae, tertia (antica) 

 stamen unum amplectens ceterae 3 neutrales. Ovarium oblongum glabrum 

 stylo robusto coronatum, stigmatibus 3 recurvis glumam longe superantibus. 

 Fructus adhuc ignotus. 



Herba robusta usque adlV2M ^Ita, stolonifera, foliislatelinearibuslongis- 

 sime et tenuissime acuminatis margine scaberrimis r/2— 2 M longis 30— 

 35 mM latis. Caulis triqueter apice bracteis 2, foliis conformibus 60— 

 100 cM longis 22 — 32 mM latis munitus. 



The species belongs to the Section Thoracostachys. it is closely 

 allied to M. hypolytroides Clarke, which differs by its much more decom- 

 pound panicle, its spikes which are less than tvvice as long as broad and 

 its hypogynous scales, which are shorter than the glume. 



The species was named after Mr. K. Heyne, Dlrector of the Buiten- 

 zorg Muséum of Economie Botany, writer of a most valuable work on the 

 Useful Plants of the Dutch East-Indies (Nuttige Planten van Nederlandsch 

 Indië), who has made many valuable contributions to the Buitenzorg 

 Herbarlum. 



