121 



Echium are known to be gyno-dioecious. The female plants are 

 comparatively rare. The corollas are smaller than those of 

 hermaphrodite plants, the stamens a^e included or very shortly 

 exserted, and the anthers oblong-linear, sterile. 



E. Bond-Spraguei is allied to E. leucoyhaeum and E. hrevi- 

 Tame. It differs from the former in its more spinulose leaves, 

 narrower calyx-segments, (usually) shorter style-arms, and in the 

 lateral cymes which are not spreading in fruit; it may be dis- 

 tinguished from the latter by its less zygomorphic corolla, 

 differently shaped calyx-segments, stamens inserted near the 

 middle of the corolla, and longer style-arms. 



4. E. brevirame, sp. nov. 



Folia oblanceolato-linearia vel linearia (usque ad 1 cm. lata), 

 acuta vel subacuta, spinulis marginalibus satis numerosis mani- 

 festis ascendentibus, costalibus paucis sparsis, nervis lateralibus 

 plus minusve distinctis, subtus sericea. Calycis segmenta lanceo- 

 lato-linearia, subacuta, a basi ad apicem angustata ; segmenta 

 lateralia corollae tubo breviora, 5'5-8 mm. longa, medio 0'8~ 

 1'2 mm. lata. Corolla alba, manifeste zygomorpha, in toto 12- 

 13 mm. longa ; lobus anticus 2-5 mm., laterales 2-2'5 mm., postici 

 2-2*5 mm, longi. Stamina antica 7'5-8-5 mm. supra basin 

 corollae, 4— 4'5 mm. infra apicem lobi antici inserta. Stylus 

 grosse pilosus, pilis inferne patentibus; rami 0'2-0-4 mm, longi. 

 Nuculae crassae, valde echinulatae. — E. aculeatuTn var. leuco- 

 phaeum^ Bornmiiller in Engl. Jahrb. vol. xxxiii. p. 465, quoad 



stirpem palmensem. 



Ca:n'Ary Islands. Palma : eastern region; northern face of 

 Barranco Carmen, fl. May 31, Sprague 8f Hutchinson 162 ; 

 Barranco del Rio, fl, June 9, R, P. Murray. 



The leaves of the two small specimens gathered by Murray are 

 rather more crowded than in typical E. hreviramey and the 

 anticous stamens are inserted a little nearer the middle of the 

 corolla. The specific name refers to the very short style-arms, 

 which serve, with other characters, to distinguish this species 

 from E. Bond-Spraguei. E. brevirame differs from E. aculeatum 

 in the less spinulose leaves, the shorter calyx-segments, and the 

 inflorescence. 



5. E. aculeatum, Pair. Encycl. Meth. vol. viii, p. 664; Lehm. 



PI. Asperifol. p. 405, t. 5 (ic. mala); Webb & Berth. Phytogr. 



Canar. sect. 3, p. 50, escl. var. 



Folia anguste linearia (usque ad 5 mm. vel rare fere 1 cm. 

 lata), acuta vel subacuta, margine et costa subtus spinosissima, 

 spinis patulis, subtus sericea, nervis lateralibus plerumque in- 

 distinctis. Calycis segmenta lineari-subulata, acuta, a basi ad 

 apicem angustata; segmenta lateralia corollae tubo longiora, 10- 

 11 mm, longa, 0*8 mm. lata, conspicue spinosa. Corolla alba;- 

 lobus anticus 2-5-3 mm., laterales 2-2-5 mm., postici 3 mm. 



longi . Stamina 



apicem lobi antici inserta. Stylus supra medium incrassatus, 

 pHis ascendentibus; rami 0'2-0-5 mm. longi.— ^. aculeatum, var. 

 genuinum, Bornmiiller in Engl. Jahrb. vol. xxxiii. p. 465. E. 

 aioanteum. var. aculeatum, Bornmiiller, I.e. 466. 



