404 LXXX. BOKAGINE^. {Hahjania. 



typical specimens of lliis and the preceding species, Eiullicher's descriptions leave no tlouLt 

 as to their identity. 



7. TRICHODESMA, E. Br. 



Calyx deeply divided into 5 segments. Corolla with a very short tube, 

 almost rotate, with 5 acuminate lobes contorted in the bud. Stamens 5, in- 

 serted in the throat, the filaments very short and flat ; anthers erect, linear, 

 ciliate, cohering by the hairs in a cylinder contracted into a long spirally- 

 twisted beak formed of^ tbe terminal appendages of the anthers. Ovary 

 entire, 4-celled, witli 1 pe])daloas ovule in each cell; style terminal, filiform, 

 with a minute stigma. Fruit of 4 1-secded nuts, attached by their whole 



rcirious of Asia and 



inner face, which, when detached leave 4 cavities in the thick persistent pro- 

 minently 4-angled axis. Seeds without albumen; embryo straight,- vnth a 

 very short radicle. — Coarse hispid hoary or silky herbs. Leaves opposite or 

 alternate, usually entire. Flowers in terminal one-sided simple or rarely 

 forked racemes, usually accompanied by bracts. 



The genus comprises very h\\ species dispersed over the warmer regie 

 Africa. The only Australian species extends over nearly the whole range of the genus. 

 Formerly included iu the genus Borago, and still usually referred to the tribe of Boragese, 

 Tnchodesma differs iu the entire ovary with a terminal style, and is in fact very nearly 

 allied to Haigania. The fruit, however, does not^ as iu that genus, separate into distuict 

 earpels, but the endocarp, hardening round each seed, forms 4 pyrenes or nuts, which detach 

 themselves from the persistent remainder of the pericarp. 



1. T. zeylanicum, R. Br. Prod. 496. A coarse hard annual, usually 

 erect, not much branched, and often attaining several feet, the indumentum 

 very various, sometimes close and hoary or longer and silky, more frequently 

 consisting of short rigid appressed hairs or long loose scattered ones, or the 

 various hairs intermixed, the longer ones usually arising from proniuient 

 tubercles. Leaves in the Austrahan specimens mostly alternate or the lo\rer 

 ones opposite, more rarely nearly all (as is usually the case in Indian speci- 

 mens) opposite, linear, linear-lanceolate or rarely broadly obloug-Ianceolate, 

 obtuse, often 3 to 4 in. long, the margins usually recurved. Flowers pale 

 blue, in simple racemes, with a leafy bract under each always shorter thnn 

 the pedicel. Calyx-segments lanceolate, acuminate, ^ to f in. long at the 

 time of flowering, nan-ow or broad, valvate or reduplicate, often cohering aj 

 the base, sometimes much enlarged round the fruit, but without the reflesea 

 auricles of T. indicum. Corolla-lobes broad, longer than the calyx, the 

 points naiTOw, spirally-twisted in the bud as well as the long anther-pointy. 

 Nuts smooth and shining.— A. DC. Prod. x. 172, with the synonyms aa- 

 duced; Bot. Mag. t. 4820. 



iJ^'^ '^'^^'■^^',^• . ^■^- •=°'**t' ^- f^^^'iningham and others ; Victoria river, F. Mueller 

 isJaads of the Galf of Carpentaria and adjoining mainland, R. Brown and others. 



Queensland Keppel and Shoalvvater Bays, B. Brown; common from Cape 'iork 

 N S Wal"-" ^--1"*"'°'".^- ^^l^»"^9J^rn, F. Mueller, aud many others. 

 S. Austr 



ales. Betweeu Stokes' Rati-e and Cooper's Creek, Wheeler. , 



alia. Head of Spencer's Gulf, R. Broum; Elder's and Flinders Kangt . 



IV 



Coll. H. 133 ; Flinders' Bay, Collie. 



