AND SPECIES HYBRIDS WITHIN THE GENUS SACCHARUM 115 
absent. Leaves rather narrow, hanging, always provided with nu- 
merous small yellow spots. Inflorescence rather small with lateral 
axes of the first and second order, the latter also present higher up. 
in the panicle, while sometimes at the base of the inflorescence 
axes of the 3d order occur. Axes with long soft hairs. Palea infe- 
rior present. Lodiculae without ciliae. 
The chromosome-number of five kinds of Saccharum officinarum 
was investigated, to wit of Ardjoeno, Green German New Guinea, Fidji, 
Batjan and Bandjermasin hitam. Of all these kinds JESWIET !) has gi- 
ven a detailed description, so that it will suffise to mention a few points 
derived chiefly from his descriptions. 
Teboe Ardjoeno or Redjoeno. Frequently cultivated in the gardens 
around the houses of the Javanese. Stem green, internodes barrel- 
shaped. „Leafcrown” fastigiate, broad-leaved. Of this kind a yel- 
low striped budvariation is known with white stripes on the leaf- 
sheaths and leafblades. Very susceptible to yellow stripe disease 
and rootrot. Very fertile in both sexes and giving, selffertilised, 
plants greatly ressembling the mother but not — as OSTERMANN 2) 
thought — entirely identical with it. Many other kinds, such as 
Teboe Agong and Teboe Soerat Bourbon are closely related to Ar- 
djoeno. ; 
Green German New Guinea. Originally imported from New-Guinea. 
Strong, thick, bronze-green kind with very short cylindrical to al- 
most barrel-shaped internodes. , Leafcrown”’ broadleaved, the 
older leaves drooping, the younger ones upright with drooping 
points. Cane-production large, sugar-production small. F requent- 
ly flowering with large inflorescences. Fertile in both sexes but the 
male fertility very variable. Both after selfing and crossing: many 
dwarfs with short internodes besides strong tall plants. According 
to JESWIET the following kinds are closely related to German New 
Guinea: Sampang cane of Madoera; Sawoe Kroepoek of Java; Red 
1) J. Jeswier. Een zestal rietsoorten, die meermalen als bijmenging in 100 
POJ voorkomen. Rietsoort Fidji. Arch. voor de suikerindustrie. 24 1913 p. 
1325. 
J. Jeswrer. Zestien oorspronkelijke Rietsoorten uit den Maleischen Archipel. 
ibid 28 1920 p 2183. 
?) F. BENECKE. Over Suikerriet uit „zaad”, Mededeelingen van het Proef- 
station, ,Midden-Java’° 1889 p 51. 
