Tas. 8731. 
ORTHROSANTHUS cHIMBORACENSIS. 
Mexico to Peru. 
Inmacear. Tribe SisyRIncHigaR. 
OrtHRosanTHUS, Sweet; Benth. et Hook. f. Gen. Plant. vol. iii. p. 697. 
Orthrosanthus chimboracensis, Baker in Gard. Chron. 1876, vol. vi. p. 67, 
et in Journ. Linn. Soc. Bot. vol. xvi. p. 112, et in Handb. Irid. p. 119; 
Hemsl. Biol. Centr.-Amer. vol. iii. p. 8329; species O. spicato, Baker, affinis, 
inflorescentia paniculatim ramosa distinguenda. 
Herba perennis; rhizoma breve, obliquum, lignosum. Folia linearia, 88 cm. 
longa, 7 mm. lata, equitantia, herbida, marginibus minutissime denseque 
serratis. Pedunculus rigidus, viridis, 50 cm. altus; bracteae primariae 
herbaceae, margine membranaceae pubescentesque, lanceolatae, acu- 
minatae, 2°5 cm. longae, acute carinatae, in carina ciliatae; flores ad 
bractearum axillas fasciculati ; bracteae secundariae ovato-lanceolatae, 1 cm. 
longae, quam primariae minus acute carinatae ciliataeque; bracteolae 2, 
ovato-lanceolatae, subobtusae, herbaceae marginibus latis membranceis 
praeditae ; pedicelli 2-5 cm. longi. Pertanthiwm lavandulaceo-azureum ; 
segmenta subaequalia, 15 mm. longa, 10 mm. lata, patentia, obovata, 
exteriora breviter cuspidata, interiora apice obtusa basi subito contracta. 
Filamenta libera, subulata, 5 mm. longa; antherae lanceolatae, luteae, 
5 mm. longae. Stylc rami subulati, purpurei, 8 mm. longi. Ovarium 
eylindricum, nitidum, viride, 7 mm. longum. Fructus oblongus, trisul- 
catus, 2 cm. longus, 4 mm. diametro, obscure brunneus.—O. Moritzianus, 
Klotzsch ex Baker in Journ. Linn. Soc. Bot. vol. xvi. p. 112. Moraea 
chimboracensis et M. acorifolia, H. B. & K.,.Nov. Gen. et Sp. vol. i. p. 822. 
Sisyrinchiwm Moritzianum, Klatt in Linnaea, vol. xxxi. p. 878.— 
C. H. Wricur. 
The genus Orthrosanthus, ‘morning flower,” includes 
seven species, five of which are confined to West 
Australia; a sixth species is said to occur in South 
Brazil; the seventh, which is here figured, has a wider 
range than any of the others, for it extends along the 
Andes from southern Mexico to Peru and Bolivia. The 
nearest ally of Orthrosanthus is Sisyrinechium, Linn., from 
which our genus differs in having free filaments. But 
the Brazilian species O. spicatus, Baker, is said to have 
the filaments united, and on this account it has been 
referred, in the ‘ Flora Brasiliensis,” to Sisyrinchium. If 
this treatment be accurate, then 0. chimboracensis, the 
Ocroper, 1917. 
