PHANEROGAMS— PROFESSOR BAYLEY BALFOUR. 185 



A species distinguished from all others by the large size of its leaves and 

 flowers. A plant of Griffiths, from the Khasia hills, named T. kkasianum, by 

 C. B. Clarke (in Hook. Flor. Brit. Ind. iv. 154), approaches it in this respect, 

 but is altogether smaller and is quite a distinct plant. 



I have named the species after Scott, our collector, who first found the plant 

 on Socotra. 



2. T. microcalyx, Balf. fil. in Proc. Roy. Soc. Edin. xii. (1882), 81. 



Annuum hispido-asperum ; foliis ellipticis v. ovatis, inferioribus petiolatis ; floribus mediocris ; 

 calycis segmentis lanceolatis sub fructu non auctis ; nuculis deltoideis dorsaliter valde 

 muricatis non marginatis. 



Herba annua 2-3-pedalis erecta aspera canescente-hispida pilis basi tuberculatis bipavtim 

 ramosa, caulibus quadrangulatis internodiis elongatis in innorescentias deliquescentibus. 

 Folia opposita, basalia 5.] poll, longa 2 poll, lata elliptica acuta basi inrequilateralia 

 subcuneata, margine obscure crenato-serrata, supra pilorum delapsorum baseis tuberculata 

 subtus scabrida, petiolo 1 poll, longo, superiora gradatim minora sessilia ovato-acuta basi 

 subcordata hispida. Gcmmcc fulvo-hirsuta?. Inflorescentia primum dichasialis bracteis 

 magnis foliaceis, ramulis peuultimis 1^-2 poll, longis basi nonfloriferis hirsutis apice 

 sympodialiter ramosis bracteatis paucifloris, floribus pedicellatis extra-axillaribus 

 plerumque cernuis, pedicellis hirtis |— \ poll, longis. Flores mediocri. Calyx alte 

 5-fidus, segmentis lanceolatis acutis \ poll, longis intus in parte superiore strigulosis 

 extus dense hispidis medio nervo prominente, sub fructu non auctus. Corolla azurea } 2 poll, 

 longa, tubo calyci aequilongo, lobis late rotundatis mucronulatis. Stamina exserta ; 

 antherre anguste ovato-oblongti? £ poll, longas aristis glabris aequilongpe dorsaliter in 

 parte superiore villosae et contiguae pilis implectis conjunctte, basi vix villosye. Nuculm 

 calyce non opeitae deltoideaj \ poll, longoe glabrae dorso valde muricatae non alatse sod ad 

 apicem margine paulum products. 



Socotra. On the Haghier range near Adona. B.C.S. n. 538. Schweinf. 

 n. 632. Nimmo. 



Distrib. Endemic. 



Another very distinct species of this genus. It differs from all described 

 forms, especially in the calyx, which has narrow segments, and they do not 

 enlarge in fruit, or become prolonged at the base. Thus the nucules are not 

 completely hidden. In habit, it is a close ally of T. africanum, 11. Br. (Prod. 

 498), a plant of wide distribution in tropical Africa, and south-west Asia. But 

 our plant is more hispid, not so scabrous as the African plant, and then the 

 calyx in that species has the segments enlarging, and becoming very cordate at 

 the base in fruit, and the nucules are shortly marginate with hooked projections, 

 and on the back is a median row of tubercles. 



This is one of the Socotran plants in Kew Herbarium sent by Dr Nimmo. 



3. T. laxiflorum, Balf. fil. in Proc. Eoy. Soc. Edin. xii. (1882), 81. 



Annuum sparsim setulosum ; foliis ovatis v. oblongo-ovatis, inferioribus petiolatis ; inflorescentiis 

 laxe ramosis ; floribus parvis ; calycis segmentis lanceolatis sub fructu non auctis : nucidis 

 obovatis dorsaliter minute tuberculatis margine alatis. 

 TRANS. ROY. SOC. EDIN. VOL. XXXI. 2 A 



