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SUMMARY:
Heavy rain at Tum La hampers collecting; most Primula are over, though a yellow-flowered Meconopsis is noted. On 9–10 July the party faces flooding on the Nagü Chu, Kusho warns the coolies, threats are reported from local Lopas about going to Nagü, and the plan shifts to bypass Shoka La and proceed to Lando.

CONTENT:
Tum La
Mola - Milung - Nagu Trip no more successful than Langong Trip

Primula etc. P. calliantha are all over. (5785). It is a nivalis primula & I think has yellow flowers. Omphalogramma elwesiana? 5786 is also common, flowers just about over, & P. valentiniana is also about over. The nivalis p. is the only new one, & I was awfully sorry not to be able to find even one plant with a flower on it. The one bright spot was a Meconopsis lyrata or horridula? 5790, which reminds me much of M. argemonantha, but it has yellow flowers, and not white ones. We left enough for seed, if we can again find the place, which will be difficult as we could recognize nothing to mark it by today, in the mist. It is a nice little thing, & should do well enough at home, judging by the altitude. This Tum La must surely be the lowest Pass in the Himalayas, only 12250 ft. I had thought of trying somewhere else after today, but will go south towards the Lopa village tomorrow, & look for low altitude flowers. We saw one of monal today & some snipe - no other game. Out at 5.00 am, back at 4.00 pm.

9th July. Halt. Tum La. Rained all night, & very hard all today. We are going to have some difficulty getting back to Nagü I think. Kusho went off today to warn the coolies to come early tomorrow, & he was twice nearly up to his waist in water. And some of the coolies say the loads will get wet, which must mean they expect about 3 ft of water somewhere. Some Lopas yesterday, going down to Nagü told my people that they did not want me to go down there & that if I did, they would shoot us with arrows - a nice cheerful welcome. However we went up again to the Tum La this morning & down the other side for a couple of miles. But it would be necessary to go much further to be of any use so I returned. Up to then we saw nothing. The path is very narrow, in dense forest of abies & rhododendron & we could not get off it. So I returned & went up the main Nagü Chu as far as we could conveniently. The whole valley is full of water & we were in 6" to 1 ft the whole time. The river does not seem able to carry it away fast enough. This little trip is now over, & it has not been any more successful than Langong really. As the Shoka La is said to be as low as the Tum La, I will miss it out & go on direct to Lando & hope for better things there. It will be nice again to get to a drier zone, though I hardly expect the Tsangpo valley below this is really dry. Primula alpicola 5801 - often blue.

10th July. To Camp in Nagü Chu, same as on 5th July. 12 1/2 miles. Rain all night & all today, but not very heavily. The path was worse than when going up, but luckily there are logs over the worst places,

SUMMARY:
Notes record Primula specimens at Kucha La, including forms of P. dryadifolia and an unidentified capitata-like plant with densely hairy, non-farinose leaves. The page lists distribution ranges for several Primula and Omphalogramma taxa across passes from Tum La and Chubumbu La through Kucha La, Lusha La, Tamnyen La, and into Bhutan and China.

CONTENT:
55a Kucha La

5931. = 5865. Primula Dryadifolia Sect. (Tsongpen) Kucha La. Very common here.
5932. " " Jonarduni (Dryadifolia). " " " " , grows close to 5931.
5933. " " macrocarpa (macrophylla true form). Kucha La. White round the eye not prominent as in 3895.
5934. " " aff capitata.? (Concholoba) Kucha La. I don't recognize this. The leaves have no farina, rare, densely
      covered with long hairs. Unfortunately, only these three specimens were seen.

PRIMULAS. Primula Elizabethae. Extent from TUM LA to CHUBUMBU LA. Its place in the East seems to be taken by
" 5872 Calliantha " " TUM LA to KUCHA LA + Lusha La + Tamnyen La.
" Valentiniana " " China to CHUBUMBU LA.
" odontica " " Tsari Sama (not seen on Chining La or Chubumbu La) to TAKAR LA.
" tsariensis " " LO LA to Tsari Chikchar and then in Bhutan.
" Dryadifolia sect. 5865 (Tsongpen) " " TSANANG LA to KUCHA LA + LO LA
" Chamaethauma " " LUSHA LA to PA LA
Omphalogramma minus " " CHUBUMBU LA to TUM LA. + TAMNYEN LA.
" brachysiphon " " " " " " " " 186-2 57 2.6pm 140.7 = 148.5
Primula Boothii " " HA, Bhutan to NYUG LA PACHAKSHIRI.
" Whitei " " Central Bhutan to DOSHONG LA. (replaced by P. sonchifolia?)

SUMMARY:
Notes from Kucha La and nearby valleys describe poor flowering despite promising terrain, with common Primula (including Dryadifolia/tsangensis and nivalid forms) and several Meconopsis. Weather shifts from clear to mist, rain, and thunder lead to a move back to Kulu Lungma; wildlife seen or reported include lerwa with young, Heteroxenicus stellatus, bear tracks and cubs, deer, and possible wild cattle. A hypsometer reading near the Go nyi re ridge suggests an elevation around 15,800 ft.

CONTENT:
Kucha La

over a good bit of the hill to the E of the Pass saw nothing new. The nivalid primula is fairly common but over. The Dryadifolia one is also here & P. jonardunii (Dryadifolia). Little else. We move by N of the range tomorrow. I see clouds again rushing up from the S west over the hills, that the good spell must be about over now. It has been lovely weather.

Kucha La
25th July. Halt. Fairly clear for an hour or two in the morning, then mist over everything. We were back by 3.0pm, it cleared up after rain & thunder by 4.0pm. Although the country looks perfectly wonderful for flowers, it is very poor indeed, there is no point in stopping longer, so we go back to Kulu Lungma tomorrow & try there. Prim. Dryadifolia (P. tsangensis) of the Tsanangha 5865 (= 5931) & also the nivalid primula 5872 (P. calliantha), no longer in flower, are both common; P. chamaethauma also (no flower) but no P. valentiniana or others expected here. P. jonardunii (Dryadifolia) is also common. Mec. betonicifolia at camp abounds, & a rather poor coloured M. simplicifolia, M. horridula & M. sinuata (speciosa) (5940). I saw many lerwa today, with young just able to fly. Also Heteroxenicus stellatus near the Tsanangha, also with young, about the top limit of abies zone.

Kulu Phu Chu
26th July. Kulu Lungma. 6 1/2 miles. Rain at night, mostly fine today, with bright intervals. Went up the Kucha La first thing to take the height. We looked about there a little, but there is nothing but a little P. valentiniana & some P. nivalis sect. in seed. So we came on here, will work this area for a couple of days as perhaps there is good. We saw fresh tracks of bear this morning, the coolies saw two young bear the day we arrived. Much deer also pretty common. The coolies also said they saw some kind of wild cattle near the Kucha La - not yaks of course. I don't know what they would be.

27th July. Halt. Fine all day, but clouded, with bright intervals. We went off at 5.45 & came back at 4.0pm, up the ridge to the North of the valley. It is a continuation of the Go nyi re ridge, so we thought it might be good. And it is not bad. I took a hypsometer reading about 400 ft from the extreme top of the ridge, BP 186.2 T. 57. at 2.0pm., giving an approx ht of 14800, which puts the ridge at 15800', so we climbed about 4500' today. We are too late for the primulas of the semi dry (dry winter wet summer) zone. The little dwarf nivalid (P. amabilis?), 5889, primula is common, we found one solitary flower, from which I would certainly say it is nivalid. We also found a little more of

SUMMARY:
The page lists Primula and Omphalogramma specimens (nos. 6504–6554) with identifications, comparisons to earlier numbers, and locality notes. It records that Primula Elizabethae was collected at its type locality (1886), that on May 15th plants were under 3 ft of snow, and seed likely ripened about 15th September. Several entries note proximity to prior collections (e.g., 5872) and observations on forms and seed set.

CONTENT:
68a

6504 Primula rhodochroa Minut. Sect. Gonyore. Possibly equals no 5890. Yes.

6515. " micropetala? belle-ish? Kulu Phu Chu. hyacinthina. Kulu Phu Chu. I was looking for No 5888 but could not find it. This was some miles away.

6516. " Aliceae. Calliantha. Kulu Phu Chu. Kulu Phu Chu. Calliantha. Taken quite close to where I got 5872, I think there is no doubt it is the same thing.

6517. " Morsheadiana. prenautha. Tsarang La. This is the high altitude form, bigger flower, never candelabra in form.

6518. " Aliceae. calliantha. calliantha Tsarang La. This is from the same place as 5872.

6519. " Valentiniana. Yes. valentiniana Tsarang La. Same place as 5866.

6520. " aff glabra. ? Kulu Phu Chu. Lo La.

6521. Omphalogramma brachysiphon. v. Lo La. Too far gone for me to say. It may be O. minus.

6522. Primula Elizabethae. Yes. La La. From type locality (1886). The seeds are nearly all blown out. This collection represents 2 days' work! On May 15th these were under 3 ft. of snow. Seed must have been fully ripe about 15th September.

6523. Primula ? laeta? Chamaethauma. Do La. Taken from approximately the same spot as the type specimen of P. laeta. It does not appear to be either P. Roylei (calderiana), or P. tsonanensis, the only other two Petiolares I could find there. Roots taken with soil without: the winter bud wrapped in moss.

6524. " Roylei. calderiana. Do La. Only taken in case it might be P. laeta.

6525. " Subularia. v. Do La. Very few seeds in capsules.

6526. " Dryadifolia Sect. tsonapensis. Do La. tsonapensis tsonapensis. This is the same primula as my Nos. 5865 + 5931. This would be very pretty in cultivation. Would like to try seeds on moss on a damp, sloping boulder.