Tfasium.] cxxxni. SANTALACE^S. (J. Pr Hooker.) 229 



ovules 2-3, adnate to, or pendulous from, a central column (solitary and 

 basal in Champereia). Fruit a nut or drupe. Seed globose or ovoid ; testa 

 thin or obsolete ; albumen copious, fleshy ; embryo usually terete. Genera 

 28, species 220, temperate and tropical. 



TRIBE I. Thesieae. Perianth ^-superior, tube adnate to the base of 

 the ovary, and usually produced above it. Disk 0, Fruit a very small 

 nut. 



Flowers spicate 1. THESIUM. 



TRIBE II. Osyridese. Perianth superior, tube adnate to the ovary, 

 not produced above it. Fruit a drupe. 



* Anther-cells distinct, parallel, 



Stamens with interposed processes. Leaves alternate .... 2. PFRULARIA. 

 Stamens with interposed processes. Leaves opposite .... 3. SANTALUM. 

 Stamens without interposed processes. Leaves alternate ... 4. OSYRIS. 



** Anther-cells divergent or confluent. 



Parasitic shrubs. Flowers minute, cymose or fascicled ... 5. HENSLOVIA. 



Leaves alternate. Filaments 2-fid 6. SCLEEOPYRUM. 



Small leafless parasitic shrubs 7. PHACELLABIA. 



TRIBE III. Anthoboleae. Perianth inferior, 3-4-partite. Ovary 

 superior or immersed in the disk. Ovule 1, erect. 



Flowers in slender axillary panicles, very minute 8. CHAMPEREIA. 



1. THESXUXVE, Linn. 



Slender perennial herbaceous root-parasites, rarely annual or shrubby. 

 Leaves alternate, narrow, decnrrent, 1-3-nerved. Flowers minute, greenish, 

 solitary and axillary or in 2-chotomous cymes, 2-sexual. Perianth adnate 

 to the ovary, tube produced above it ; lobes 5, rarely 4, with a tuft of hair 

 on the face. Stamens 5-4, inserted at the base of perianth-lobes, included. 

 Ovary inferior ; style short or long, stigma capitate or lobulate ; ovules 

 2-3, pendulous from a basal free often flexuous or crumpled column. Fruit 

 a sinuate drupe or nut, often ribbed. Embryo terete. Species about 100, 

 temperate and tropical ; all but 2 Brazilian species are natives of the Old 

 World. 



1 have no sufficient materials for discriminating the Himalayan plants of this most 

 troublesome genus, which I provisionally include under T. himalense, itself probably 

 a widely distributed W. and N. Asiatic plant, possibly also European. 



1. T. himalense, Royle III. 322; stems procumbent or suberect very 

 slender, leaves bracts and braoteoles linear, nut ellipsoid or globose its 

 nerves rather faint crowned by the narrower perianth- tube with linear 

 incurved lobes. Edgeworth in Trans. Linn. Soc. xx. 88 ; A. DC. Prodr. xiv. 

 645. T. multicaule, Herb. Ind. Or. H.f. $ T., ? of Ledeb. 



WESTERN HIMALAYA; from the Chenab Valley to Kumaon, alt. 5-7000 ft., 

 Koyle, &c. 



Very closely allied to T. multicaule, but very much more slender, and usually 

 procumbent. Stem 6-18 in. Leaves scattered, 1-2 by T |j- in., 1-nerved. Perianth 

 glabrous; lobes bearded within, obtuse. Style often cxserted, stigma capitate. 



