Thesium. | CXX. SANTALACEZ (BAKER AND HILL). 423 
Mozamb. Distr. British Central Africa: Nyasaland; Masuku plateau, 6500— 
7000 ft., Whyte! 
This species resembles 7. Stuhlmannii, Engl., in habit, especially in the short 
leafy axillary inflorescences, but it differs in the very small perianth, 
26. T. filipes, 4. W. Hill in Kew Bulletin, 1910,184. Annual ?; 
rootstock short, woody; stems erect, filiform, unbranched or very 
rarely with one or two branches, 2-2} ft. long, quadrangular, grooved. 
Leaves minute, scale-like, distant. Flowers arranged in a terminal 
spike, 1-3 in axils of bracts ; bracteoles numerous, imbricate, ovate, 
acute, keeled, with margins membranous and fimbriate. Perianth 1 lin, 
long ; lobes 3-7 lin. long, linear, acute, margins slightly inflexed, hairy. 
Filaments } lin. long; anthers} lin. long. Style 3-3 lin. long. Fruit 
not seen. 
Lower Guinea. Lower Congo: Dolo, Schlecter, 12810! 
A long wiry plant, leaves few, reduced to scales ; the flowers, with the relatively 
long perianth-lobes and the anthers borne on long filaments, are similar to those of 
T. Stuhlmannii, Engl. 
27. T. rectangulum, Welw. ex Hiern in Cat. Afr. Pl. Welw. i. 936. 
Herb, annual, erect, glaucescent, 1-14 ft. high, branched like a broom ; 
branches numerous, acutely angled or somewhat winged. Leaves of the 
main stem towards base 3-1} in. long, linear, thick, acute; leaves on 
branches 14-2 lin, long, linear-lanceolate, acute, adpressed. Flowers 
whitish, terminal or sessile in the axils of bracts; bracts and two 
bracteoles of lateral flowers about equal in length to the flowers, margins 
slightly ciliolate. Perianth campanulate-cylindric, 14 lin. long; lobes 
2 lin. long, ovate-lanceolate, hooded, glabrous. Filaments } lin. long ; 
anthers about 4 lin. long. Style 24 lin. long. Fruit globose, 1 lin. in 
diam., with 5 prominent ribs and 5 intermediate less conspicuous ribs 
and transverse reticulations. 
Lower Guinea. Angola: Huilla; in thickets and hilly hot places near 
Lopollo, also in wooded meadows near Catumba, Welwitsch, 6436! 
28. T. ulugurense, Lngl. in Engl. Jahrb. xxviii. 385. Herb; 
stems many, strongly branched, 9-12 in. long; branches 4-6 in. long, 
flexible, smooth. Leaves spreading, narrowly linear, apex cartilaginous, 
3-3 lin. long, } lin. broad. Flowers shortly pedicellate in axils of bracts 
about 3-4 lin, long, slightly adnate to pedicels; bracteoles 14-2} lin. 
long, longer than the flowers. Perianth } lin. long; lobes 3-4, lin. 
long, oblong, obtuse, hooded, glabrous. Anthers very small, about 
$ lin, long, subrotund. Style not exceeding the anthers in height, about 
$ lin. long; stigma capitate. Fruit ovoid, smooth, 1 lin. long. 
Mozamb. Distr. German East Africa: Central Uluguru; Lukwangula 
plateau, at the upper edge of high woods, 7500 ft., Stuhlmann, 9206! in meadows, 
7800 ft., Goetze, 256. 
This species very closely resembles 7. nigricans, Rendle, and it seems not unlikely 
that with more complete material it may be found that 7. ulugurense cannot be 
maintained as a distinct species. 
