Tab. 7608. 

 TCHIHATCHEWIA isatidea, Boise. 



Native of Armenia. 



Nat. Ord. Crucifek^. — Tribe Isatide.e. 

 Genus Tcijihatchewia, Boiss. ; {Benth. & Ilook.f. Gen. Plant, vol. i. p. 93.) 



Tcijihatchewia isatidea; herba perennis, tota pilis elongatis patulis simplici- 

 bus brevioribnsque farcatis hispido-strigosa, radice elongata, caule erecto 

 humili robusto dense folioso superne ranaoso ramis corymbosia flori- 

 bundis, fobis sessilibus v. breviter petiolatis lineari-oblongis obtusis 

 patenti-recurvis integerrimis v. remote dentatie, costa lata, floribua 

 in racemos breves densifloros ramulos terminantes erectis breviter 

 pedicellatis, sepalia linearibus obtusis lateralibus basi saccatis, petalis 

 longe unguiculatis, lamina ungue dimidio breviore rosea, fikmentis 

 edentulis, ovario breviter^ stipitato oblongo stellatim tomentello 2-locu- 

 lare loculis uniovulatis, stigmate sessile bilobo, siliqua majuscula pendula 

 ovata obovata v. obcordata obtusa v, apice emarginata late alata alia 

 coriaceig, nucleo valde compresso 2-locnlari indehiscente, loculo uno tantum 

 eeminifero, semine a fnniculo brevi pendulo orbicular! valde compresso, 

 testa coriacea brunnea, cotyledonibus latis planis radicula magna accum- 

 bente. 



T. isatidea, Boiss. in Tchihatch. As. Min. Bof. vol. i. p. 292- Fl Orient vol i 

 p. 310. 



A no less singular than beautiful Orucifer, discovered by 

 the late Count Paul de Tchihatchef during his travels in Asia 

 Minor, at an elevation of 5000 to 6000 ft. on the mountains 

 near the town of Erzinhan, in the Pachalik of Erzerouin ; 

 that is at the sources of the Euphrates. There is an error 

 in Boissier's description of the genus, where the pod is 

 described as one-celled and two-seeded, there being in fact 

 two cells, separated by a membranous septum, one of them 

 containing a perfect seed, the other an arrested (? al ways) 

 ovule. The genus is closely allied to Peltaria, L., differing 

 in the 2-celled ovary. 



Count de Tchihatchef was a famous traveller and writer, 

 who, besides his opus magnum in seven volumes, on 'the 

 geography, climate, zoology, botany and geology of Asia 

 Minor, was the author of works on the Bosphorus, Travels 

 in the Eastern Altai, Spain, and Algeria. He was a Cor- 

 respondent of the Institute of France, and was well known 

 and highly esteemed in scientific and literary society in 

 England and throughout the Continent. 

 August 1st, 1898. 



