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100 CONTKIBUTIONS FROM THE NATIONAL HERBARIUM. 



long UH tlu^ loaves; podH ^^laucous, 4 to 5 cm. long^ 4 to 5 mm. broa<l; Koedw yellow 

 mottled witli brown. 



Type U. P. National Herbarium no. 45317;>, collected by Rose and Painter on the 

 road between Pan Juan del Rio and CadiTeyta, Qaeretaro, Autrust, 190-") {no. r'(>So). 



EXPLAN'ATTON OF PLATE XXX.— Fig. a, floweiiiig brunch; b, fruitiuj^^ braiicli; c, t'ulyx; (^f, pcluLs; 

 e and/, staiufiis; ;/, seed. Figs, a and />, natural size: c and d, scale 2; e,/, nnd r/, scale 4. 



TWO ADDITIONAL SPECIES OF COLOGANIA. 



iu 1004 I published a .synopsis of the species of Colo<^ania and the 

 next 3'ear the description of C\ congcstcL In 11)08 and 11)05 I collected 

 man}^ additional speeiniens (17 sheets) in Mexico, which have j^reatl}' 

 enriched our herbaria and added much to our knowU^dgo of the f^onus. 



Cologania lozani Rose, np. nov. 



SteniH twining witli Hpreadin^^ or somewhat rcflexed reddisli bairn; leafletn .'i, 

 lanceolate or somewliat rhoml)i(^, 4 to 7 cm. long, b5 to 2.') cm. broad, acntc, 

 ronghi?=ih-pnbePcent on both pideSj dark green above, flowi^rs (so far as known) in 

 umbels of four; peduncle 2 to 4 mm. long; pedicels al)nut 10 mm. long^ hairy; 

 bractlets at base of calyx 2, liliform; calyx S mm. long, t-ome\vlui( i)urpli:>h, glabrous 

 except foi' a few spreading tiaii's; lower calyx lobe linear, longer than the others; 

 corolla purpUsh, 25 mm. long; fruit not seen. > 



. Type U. S. National Herbarium no. 401 DGd, collected by C. (J. Pringle and his niont 

 valuable aswistant, Filemon Lozano, in the Sierra Madre near Monterey, Nuevo Leon, 

 Septend)er7, UI04 (no. 1^425). 



This HpecicH is near C deamit^ but has very differently shaped leaflets, etc. 



Colog-ania tenuis Rose, pp. nov. PLAXi: XXXL 



A delicate twining vine with a])pressed pube>'<:ence; leaflets "^^ very thin, ovate- 

 oblong, [].ri to C) cm. bi'oadj rounded at base, acut(\ with i^canty ai>pressed pubescence 

 on both siiles, i>ale beneath; tlowers 4 or 5 in a snbsep^ile mnitel i\r phort raceme; 

 peduncles r> to 10 mm. long; (*alyx tube H mm. long, i)nrple, flensely pilose; upper 



calyx lobe entire, acute; the lower one lijiear, much longer than tlie other;^; corolla 

 purple, 2.5 cm. long; pods narrow, 4 cm. or m<nx^ hjug, aj)i>r(\y!Hed-pubcscent. 



Type II. S, National Ilerljarium no. 450800 (Ro.se no. 722:?). . Collected by I^r. C. G. 

 Pringle in a moujitain cany(jn above Cuernavacaj Morelos, July 21, 1904 (no. 13414), 

 in the same general region [VA Parque) by Rose and Painter, September 21, 1!)03 

 (no. 722:^), and by Dr. C, A. Purput^ at Salto de Agna, Octol>er, 1005 (no, ]750). 



This species should probably be placed Jiear i\ f/mndifloray but it has differeJit 

 foliage, smaller flowers, and different pubescence on the calyx. 



]^:\rLANATi(iN (w 1*LATE XXXT.— Fig. «, plant, /), fruit; c, (^alyx; </, btiniuM'; e, \vu\^\ /, kool; 

 (f, stanu'iiN; //., MViiry. Figs, a to/, natural size; <fiuu] h, wrale '2. 



THE MEXICAN SPECIES OF DOLICHOLTJS.' 



Mr. llcinsley, in the Bioloo'ia Centrali-Ainericaiuu published in 18S0, 

 credits ten species of Rhynchosia to Mexico proper. 

 ' Of these, R. (uritxim lias Ikhmi excluded bv S. Watson, and R. rneni- 



1 



spenaoid^i^ has heeii referred by Miss Vail to ame7%cana. The Mexicai 



:spccinicns referred to R. senna arc true R. texana Turr. & Gr. Sev- 

 eral of the Mexican species have since been described, and foui* others 



/A 



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«D<>i-TcuoLus ^[edic. Vorles. Churpf! Pliyp. Oes. 2:354. 1787. 



, !! nrji !■ t 



-i.tj ■ ;i 



I , Type specieH I), vrmima (L. ) Medic, loc. ciL 

 ] Rhmiehosia Lour. Fl> Cochinch. 2:460. 1790. 

 Type species i?. volubiJU Lour. loc. cit. 



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