— 173 - 



HB 



— inarifwi — 



ing to the Vienna-Herbarium. This plant however does not belong to 

 H. minor but to H. lycostoma LAUT, et K. SCHUM; a species very com- 

 mon in N. Guinea and the eastern Archipelago (See below). 



Hornsted tia lycostoma (LAUT, et K. SCHUM.) K.SCH. 1904, 194 (excl. 

 descr); VALETON in N. Guinea VIII 1907, 927; Engl. Jahrb. 52 (1914), 

 53.)— Arno m um Valetonii GaonEPAIN 1908, 55, 350.— Amomam lycostomum, 

 LAUT, et K. SCH. 1899, 305; 1900, 228. (cum fig. 25, B. C. D.) (Tab. 13). 



Distribution. 



North- N.Guinea: Dore, Teysmann! 6769! in H. bog. (1876), Hum- 

 boldtbai. (GjELLERUP! 100, 1910). 



South-west New-G.: Noord river (VERSTEEG ! 1094, 15/4 1907). Mt. 

 Goliath, (de Kock!). 



North-east N. G.: K. Wilhelmsland, (LAUTERBACH ! 2542; type of species). 

 Kelel, in sec. forest, 150 M. (SCHLECHTER* 1 6332). 



Ceram: near Wahaai. (RuTTEN sine numéro, 10 bis). 



Aru-isles. (MOSELEY, BECCARI, teste K. SCHUMANN). 



Bismarck-arch. : Neu-Mecklenburg, (PEEKEL 159, nom ind. a daldal). 



Solomons-arch. (RECHINGER, teste GAGNEPAIN). 



Cult Hort, bog XIB 4 (Skroë, leg, TREUB). XiB 21 (Mt. Goliath, DE KOCK). 



This species is very nearly allied to H. minor from Java and Borneo 

 and in Herbarium it is not always easy to distinguish them. The foliate 

 stems are much resembling one another and in both the sheaths are den- 

 sely ribbed and reticulated by transverse veins. This reticulation however 

 is quite inconspicuous in the living plant and appears only in drying up; 

 it is a little more pronounced in H. lycostoma, and in some specimina the 

 transverse veins are very prominent and scabrous. In both species the 

 petioles are very short, 10 mm. or less, and the ligules are small ovate 

 rounded, shorter than the petiole which is adnate to them at the base. In 

 H.. minor however they are glabrous, rarely thinly pubescent at the back- 

 side, in H. lycostoma they are densely tomentose. 



In both species the spikes are subsessile, fusiform, the outer bracts are 

 white silky tomentose in the lower part; above and near the margin the 

 tomentum dissolves into separate short dense hairtufts forming a floccose 

 tomentum. The top and margin are dark red. But the shape of the spi- 

 kes is very different. Those of H, minor are very narrow and long at least 

 10 times longer than broad, while flowering, increasing but little in fruiting. 

 Those of M. lycostoma are elliptic- fusiform only 4—5 times longer than 

 wide in flowering. Moreover the bracts here are spinosely mucronate, 

 with erect and a little extant hard tips, in H. minor they are quite blunt 

 with an obsolete mucro, appressed, so the spike is quite smooth. 



The flowers are very alike in both species and of the same splendid 

 red colouring, the lip is calceolate with short erect auricles, but in H. minor 

 the coroll-lobes longer than the lip and narrower. In H. lycostoma the 



