138 PROCEEDINGS OF THE AMERICAN ACADEMY. 
no. 300 (hb. Gr.) ; Iguana Cove, Snodgrass & Heller, no. 31 (hb. Gr.). 
Barrincton Ist.: Snodgrass & Heller, no. 467 (hb. Gr.). CHARLES 
Ist.: Darwin; Andersson; A. Agassiz; Snodgrass & Heller, no. 414 
(hb. Gr.). Cuatnam Ist.: Andersson (hb. Gr.); A. Agassiz (hb. 
U. S. Nat. Mus.) ; southwest end, lower region, Baur, no. 301 (hb. 
Gr.) ; Snodgrass & Heller, no. 497 (hb. Gr.). Duncan Isu.: A. 
Agassiz (hb. Gr. & hb. U.S. Nat. Mus.); Baur, no. 298 (hb. Gr.) ; 
Snodgrass & Heller, no. 711 (hb. Gr.). Garpner Ist.: Snodgrass & 
Heller, no. 624 (hb. Gr.). Hoop Ist.: Baur, no. 297 (hb. Gr.). 
INDEFATIGABLE Ist,: Andersson; northern part, Snodgrass & Heller, 
no, 680 (hb. Gr.). James Isi.: Andersson; James Bay, Baur, 
no. 296 (hb. Gr.); abundant, shrubby, spreading, 1 to 1.3 m. high, 
Snodgrass & Heller, no. 360 (hb. Gr.). Endemic. With the far 
more copious material now at hand I have been unable to follow the 
forma] subdivision of this species suggested by Andersson or to correlate 
the trifling variations with occurrence upon the different islands. 
T. rruirotta, Mogq.-Tand. in DC. Prodr. xiii. pt. 2, 368 (1849); 
Anderss. (1), 165, & (2), 61. Bucholtzia filifolia, Hook. f. (3), 192. — 
James Ist.: Scouler. Endemic. 
T. rravicoma, Anderss. (1), 166, & (2), 61, t. 5, f. 2; Rob. & 
Greenm. (1), 148, in part (as to pl. Hood Isl.). —Apincpon Ist: 
Snodgrass & Heller, no. 826 (hb. Gr.), identity doubtful. CHARLES 
Ist. : in dry grassy places at middle altitudes, Andersson. GARDNER 
Ist.: Snodgrass & Heller, no. 617 (hb. Gr.). Hoop Ist.: Baur, no. 
291 (hb. Gr.) ; Snodgrass & Heller, no. 733 (hb. Gr.). Endemic. 
T. rrurescens, Mog.-Tand. in DC. Prodr. xiii. pt. 2, 265 (1849) 
q. v. for synon.; Caruel (1), 625. Illicebrum frutescens, L’Her. Stirp. 
Nov. iv. 75, t. 37 (1785). Alternanthera frutescens, R. Br. acc. to 
Spreng. Syst. i. 819 (1825), not Rob. & Greenm. (1), 148. — CHATHAM 
sL.: Ohierchia, ace. to Caruel, 1. c. Further distrib. W. S. Am., 
Panama to Caracas and Chili. 
T. GLavcescens, Mog.-Tand. in DC. Prodr. xiii. pt. 2, 869 (1849) ; 
Anderss. (1), 167, & (2), 62, t. 5, £3. Bucholtzia glaucescens, Hook. 
f. (3), 191. — Crartes Ist. : in the middle region, Andersson. CuaTHaM 
Ist.: Darwin; in grassy places and dry parts of the lower region, 
Andersson (hb. Gr.). Endemic. 
T. Helleri, nov. sp., stellato-tomentella grisea novellis subochracels 5 
ramis dichotomis teretibus gracilibus; internodiis quam folii multo longio~ 
Tribus; foliis late ovalibus vel orbicularibus apice rotundatis vel obtusis vel 
